rfc1419.SNMP over AppleTalk

思科统一通信解决方案概览概述：思科统一通信解决方案是一种集成了语音、视频、数据和移动通信的全面解决方案。

它基于IP网络，提供了一种统一的通信平台，可以实现实时通信、协作和集成应用。

本文将详细介绍思科统一通信解决方案的架构、特点、优势以及应用场景。

一、架构概述：思科统一通信解决方案的核心架构包括以下几个关键组件：1. 思科统一通信管理器（Cisco Unified Communications Manager，CUCM）：作为核心组件，CUCM负责管理和控制整个通信网络。

它提供了呼叫控制、会议管理、用户认证等功能，支持多种通信终端设备。

2. 思科统一通信应用服务器（Cisco Unified Communications Applications，CUCA）：CUCA提供了一系列的应用服务，如语音邮件、呼叫中心、会议协作等。

它与CUCM紧密集成，为用户提供丰富的通信和协作功能。

3. 思科统一通信辅助设备（Cisco Unified Communications Edge Devices，CUCE）：CUCE包括了网关、会议桥接器、传真服务器等辅助设备，用于连接不同的通信网络和终端设备，实现互联互通。

4. 思科统一通信终端设备（Cisco Unified Communications Endpoints，CUCS）：CUCS包括了IP电话、软电话、视频终端等各种类型的终端设备，用于实现用户与通信网络的接入。

二、特点与优势：1. 统一性：思科统一通信解决方案提供了一种统一的通信平台，将语音、视频、数据和移动通信集成在一起。

用户可以通过统一的界面和工具进行通信和协作，提高工作效率。

2. 灵活性：思科统一通信解决方案支持多种终端设备，并且可以与其他应用系统集成。

用户可以根据自己的需求选择适合的终端设备，并且可以通过API接口扩展和定制功能。

3. 可靠性：思科统一通信解决方案基于IP网络，具有高可靠性和稳定性。

网络管理试卷及答案一、单选题（本大题共小题，每小题分，共分）1.对一个网络管理员来说，网络管理的目标不是（）BA.提高设备的利用率B.为用户提供更丰富的服务C.降低整个网络的运行费用D.提高安全性2.网络管理中的安全管理是指保护管理站和代理之间下列哪项的安全？( )AA.信息交换B.信息存储C.信息索引D.完整信息3.下述各功能中，属于性能管理范畴的功能是（）BA.网络规划和资源管理功能B.工作负载监视功能C.运行日志控制功能D.测试管理功能4.下述各功能中，属于配置管理的范畴的功能是（）DA.测试管理功能B.数据收集功能C.工作负载监视功能D.定义和修改网络元素间的互联关系5.不属于网络故障管理功能的是（）CA.判断故障原因B.检测和报警C.设置对象参数D.诊断功能6.信息资源在计算机网络中只能由被授予权限的用户修改，这种安全需求称为（）BA.保密性B.数据完整性C.可用性D.一致性7.篡改是破坏了数据的（）AA.完整性B.一致性C.保密性D.可利用性8.防止数据源被假冒，最有效的加密机制是（）CA.消息认证B.消息摘要C.数字签名D.替换加密9.在OSI管理的面向对象模型中，把一个子类有多个超类的特性称为（）BA.继承性B.多继承性C.多态性D.同质异晶性10.在OSI管理的面向对象模型中，把可以导致同一超类下的不同子类对所继承的同一操作做出不同的响应的特性称为（）CA.继承性B.多继承性C.多态性D.同质异晶性11.在OSI管理的面向对象模型中，把一个对象可以是多个对象类的实例的特性称为（）DA.继承性B.多继承性C.多态性D.同质异晶性12.互联网中的所有端系统和路由器都必须实现的协议是（）AA.IP协议B.ICMP协议C.UDP协议D.TCP协议13.在TCP/IP协议簇中，保证端系统之间可靠地发送和接收数据，并给应用进程提供访问端口的协议是（）BA.IP协议B.TCP协议C.UDP协议D.ICMP协议14.在TCP/IP协议簇中用于在主机、路由器之间传递控制消息的协议是（）DA.IP协议B.TCP协议C.UDP协议D.ICMP协议15.在Internet网络管理的体系结构中，SNMP协议定义在（）DA.网络访问层B.网际层巳传输层D.应用层16.SNMP属于的协议簇是（）AA.TCP/IPB.IPX/SPXC.DECnetD.AppleTalk17.SNMP协议的直接下层协议是（）AA.UDPB.ICMPC.TCPD.IP18.计算机网络管理中提供统一的网络数据表示的形式语言是（）AA.ASN.1B.JavaC.C语言D.ASP19.在SNMPv1中定义管理信息结构，即规定管理对象的语法和语义的是（）AA.RFC1155B.RFC1157C.RFC1212D.RFC121320.在SNMP协议中，团体名(Community)是用于（）CA.确定执行环境B.定义SNMP实体可访问的MIB对象子集C.身份认证D.定义上下文21.以下对网络管理站的轮询策略描述正确的是（）CA.被轮询的代理数与轮询间隔成反比。

Ethertype ( 十六进制) 协议0x0000 - 0x05DC IEEE 802.3 长度0x0101 –0x01FF 实验0x0600 XEROX NS IDP0x0660 0x0661 DLOG0x0800 网际协议（IP）0x0801 X.75 Internet0x0802 NBS Internet0x0803 ECMA Internet0x0804 Chaosnet0x0805 X.25 Level 30x0806 地址解析协议（ARP ：Address Resolution Protocol）0x0808 帧中继ARP （Frame Relay ARP）[RFC1701]0x6559 原始帧中继（Raw Frame Relay）[RFC1701]0x8035 动态DARP （DRARP：Dynamic RARP）0x8036 反向地址解析协议（RARP：Reverse Address Resolution Protocol）0x8037 Novell Netware IPX0x809B EtherTalk0x80D5 IBM SNA Services over Ethernet0x80F3 AppleTalk 地址解析协议（AARP：AppleTalk Address Resolution Protocol）0x8100 以太网自动保护开关（EAPS：Ethernet Automatic Protection Switching）0x8137 因特网包交换（IPX：Internet Packet Exchange）0x814C 简单网络管理协议（SNMP：Simple Network Management Protocol）0x86DD 网际协议v6 （IPv6，Internet Protocol version 6）0x880B 点对点协议（PPP：Point-to-Point Protocol）0x880C 通用交换管理协议（GSMP：General Switch Management Protocol）0x8847 多协议标签交换（单播）MPLS：Multi-Protocol Label Switching <unicast>）0x8848 多协议标签交换（组播）（MPLS, Multi-Protocol Label Switching <multicast>）0x8863 以太网上的PPP（发现阶段）（PPPoE：PPP Over Ethernet <Discovery Stage>）0x8864 以太网上的PPP（PPP 会话阶段）（PPPoE，PPP Over Ethernet<PPP Session Stage>）0x88BB 轻量级访问点协议（LWAPP：Light Weight Access Point Protocol）0x88CC 链接层发现协议（LLDP：Link Layer Discovery Protocol）0x8E88 局域网上的EAP（EAPOL：EAP over LAN）0x9000 配置测试协议（Loopback）0x9100 VLAN 标签协议标识符（VLAN Tag Protocol Identifier）0x9200 VLAN 标签协议标识符（VLAN Tag Protocol Identifier）0xFFFF 保留。

竭诚为您提供优质文档/双击可除dhcp协议端口号篇一：常见协议及端口号我们常用的协议以及对应端口号以下内容第一段为端口号，第二段为端口对应的服务名称，第三段为注释信息。

1tcpmuxtcp端口服务多路复用。

18msp消息发送协议。

20ftp-dataFtp数据端口。

21ftp文件传输协议（Ftp）端口，有时候被文件服务协议(Fsp)使用。

22ssh安全shell(ssh)服务。

23telnettelnet服务。

25smtp简单邮件传输协议（smtp）。

37time时间协议。

42nameserver互联网名称服务。

53domain域名服务（bind）。

67bootps引导协议（boots）服务；还被动态主机配置协议（dhcp）使用。

69tftp小文件传输协议（tFtp）。

80http用于万维网（www）服务的超文本传输协议（http）。

107rtelnet远程telnet。

109pop2邮局协议版本2。

110pop3邮局协议版本3.115sftp安全文件传输协议（sFtp）服务。

119nntp用于usenet讨论系统的网络新闻传输协议（nntp）。

137在红帽企业linux中被samba使用netbios名称服务。

138在红帽企业linux中被samba使用netbios数据报服务。

139在红帽企业linux中被samba使用netbios会话服务。

143imap互联网消息存取协议（imap）。

209qmtp快速邮件传输协议（qmtp）。

220imap3互联网消息存取协议版本3.389idap轻型目录存取协议（ldap）。

443https安全超文本传输协议。

445microsoft-ds通过tcp/ip的服务器消息块（smb）。

487saft简单不对称文件传输saFt协议。

488gss-http用于http的通用安全服务(gss)。

546dhcpv6-client动态主机配置协议（dhcp）版本6客户547dhcpv6-client动态主机配置协议（dhcp）版本6服务。

首先从最简单的以太网层开始。

我们知道，目前常用的以太网帧结构有两种，一个是IEEE802.3，一个是Ethernet II，两者的区别也很清楚，就是在目的Mac地址和源Mac地址好后面的两个字节是代表长度还是类型。

EtherType是以太帧里的一个字段，用来指明应用于帧数据字段的协议。

根据IEEE802.3，Length/EtherType字段是两个八字节的字段，含义两者取一，这取决于其数值。

在量化评估中，字段中的第一个八位字节是最重要的。

而当字段值大于等于十进制值1536（即十六进制为0600）时，EtherType字段表示为MAC客户机协议（EtherType解释）的种类。

该字段的长度和EtherType详解是互斥的。

在python中我是用一个字典来实现的：EtherType={'0x0600':'XEROX NS IDP','0x0660':'DLOG','0x0661':'DLOG','0x0800':'IP','0x0801':'X.75','0x0802':'NBS','0x0803':'ECMA','0x0804':'Chaosnet','0x0805':'X.25','0x0806':'ARP','0x0808':'Frame Relay ARP','0x6559':'Raw Frame Relay','0x8035':'RARP','0x8037':'Novell Netware IPX','0x809B':'Ether Talk','0x80d5':'IBM SNA Service over Ethernet', '0x80f3':'AARP','0x8100':'EAPS','0x8137':'IPX','0x814c':'SNMP','0x86dd':'IPv6','0x880b':'PPP','0x880c':'GSMP','0x8847':'MPLS(unicase)','0x8848':'MPLS(multicast)','0x8863':'PPPoE(Discovery stage)','0x8864':'PPPoE(ppp session stage)','0x88bb':'LWAPP','0x88cc':'LLDP','0x8e88':'EAP over LAN','0x9000':'Loopback','0x9100':'VLAN Tag PI','0x9200':'VLAN Tag PI','0xffff':'Reservations'}然后根据二进制字符来分解：#framedata.py#!/usr/bin/pythonclass Protocol(object):def__init__(self):pass#transform like'\x01\x0e\0xb0'to'0x010eb0' def str_to_hex(self,strs):hex_data=''for i in range(len(strs)):tem=ord(strs[i])tem=hex(tem)if len(tem)==3:tem=tem.replace('0x','0x0')tem=tem.replace('0x','')hex_data=hex_data+temreturn'0x'+hex_dataclass Ethernet(Protocol):def__init__(self,datastr=None):self.dst=Noneself.src=Noneself.ethertype=Noneself.len=Noneself.type=Noneself.datastr=datastrdef decode(self):tem=self.str_to_hex(self.datastr[0:6])self.dst=tem[2:4]+':'+tem[4:6]+':'+tem[6:8]+':'+tem[8:10]+':'+tem[10:12]+':'+tem[12:14]tem=self.str_to_hex(self.datastr[6:12])self.src=tem[2:4]+':'+tem[4:6]+':'+tem[6:8]+':'+tem[8:10]+':'+tem[10:12]+':'+tem[12:14]self.unknow=self.str_to_hex(self.datastr[12:14])tem=int(self.unknow,16)dststr='Destination:'+self.dstsrcstr='Source:'+self.srcif tem<=1500:self.ethertype='IEEE802.3Ethernet'self.len=temlenstr='Length:'+str(self.len)return[self.ethertype,dststr,srcstr,lenstr]elif tem>=1536:self.ethertype='Eternet II'self.type=EtherType[self.unknow]typestr='Type:'+self.type+'('+self.unknow+')'return[self.ethertype,dststr,srcstr,typestr]其中父类Protocol还在初级探索阶段，没有成型，以后会根据需要完善。

SNMP协议全称为简单网络管理协议（Simple Network Management Protocol），该协议能够被广泛使用，不受协议的限制，如IP、IPX 、AppleTalk、OSI及其它传输协议均能使用。

互联网络开始规模很小，网络结构简单，因此谈不上网络监控和管理问题。

仅使用ICMP 的Ping 程序就能解决问题。

但随着互联网络规模不断扩大，使用Ping 已无法掌握网络运行情况。

此时，SNMP协议就产生了，它可通过提供有限的信息类型、简单的请求/响应机制来实现对被管理对象的操作。

同时可将管理信息模型和被管理对象分成两个模块，两个模块间通过信令交互协同工作。

目前SNMP协议已在TCP/IP 网络中广泛使用，并已成为网络管理领域事实标准。

下面简单介绍下SNMP协议的基本概念、管理模型及版本号：一SNMP协议基本概念1 NMSNMS（Network Management System），是运行在网管端工作站上的网络管理软件。

网络管理员通过操作NMS，向被管理设备发出请求，从而监控和配置网络设备。

2 Agent运行在被管理设备上的代理进程。

被管理设备在接收到网管设备侧NMS 发出的请求后，由Agent 作出响应操作。

主要功能包括：收集设备状态信息、实现NMS 对设备的远程操作、向网管端发出告警消息。

3 MIBMIB 是一个虚拟的数据库，是在被管理设备端维护的设备状态信息集。

Agent 通过查找MIB 来收集设备状态信息。

MIB 按照层次式树形结构组织被管理对象，使用ASN.1格式进行描述。

4 ASN.1抽象语法表示，使用独立于物理传输的方法定义协议标准中的数据类型。

ASN.1 描述传输过程的中的语法，但不涉及具体数据含义的表示。

5 BER基本编码规则，按照ASN.1 的语法结构，描述了在传送过程中数据内容是如何表示的。

6 SMISMI（Structor of Management Information）为命名和定义管理对象指定了一套规则。

sip alg原理SIP ALG原理什么是SIP ALGSIP ALG（Application Layer Gateway）是一种应用层网关，用于NAT设备中实现SIP（Session Initiation Protocol）协议的转换和处理。

SIP协议主要用于VoIP（Voice over Internet Protocol）电话系统和实时通信。

NAT的问题在传统的网络中，大多数网络设备采用NAT（Network Address Translation）技术来连接内部网络和外部网络。

NAT通过将内部网络的IP地址映射到外部网络的IP地址来实现数据包的转发和访问控制。

但NAT会导致SIP协议的一些问题。

1.IP地址和端口映射: NAT设备会修改SIP协议中的IP地址和端口，导致通信中的IP地址和端口信息丢失或被破坏。

2.未知IP地址: 在SIP协议中，设备需要知道对方的IP地址才能建立通信。

但是，NAT设备可能会隐藏或替换掉SIP消息中的IP地址，导致设备无法正确找到对方。

SIP ALG的工作原理为了解决SIP协议在NAT设备中的问题，SIP ALG应运而生。

SIP ALG位于NAT设备内部，负责监视和处理SIP协议的通信。

SIP ALG工作的主要步骤如下：1.SIP消息解析: SIP ALG会解析进入和离开NAT设备的SIP消息，提取SIP消息中的IP地址、端口和其他相关信息。

2.IP地址和端口映射: 当收到SIP消息时，SIP ALG会修改该消息的源IP地址和端口，将其映射为NAT设备的IP地址和端口。

当SIP消息离开NAT设备时，SIP ALG会将目标IP地址和端口映射为内部网络的IP地址和端口。

3.SIP会话跟踪: SIP ALG会维护与SIP会话相关的状态信息，以便正确处理SIP消息的转发和响应。

4.动态端口转发: 在SIP协议中，音频和视频流通常使用动态端口进行传输。

SIP ALG可以动态地将这些端口映射到NAT设备上，以便实现实时通信。

1)100 Trying说明caller正在呼叫，但还没联系上callee。

180 Ringing 说明callee已经被联系上,callee的铃正在响.收到这个信息后，等待200 OK2)181 Call is being forwarded说明call被重新路由到另外一个目的地3)182 Queued说明callee当前是不可获得的，但是对方不想直接拒绝呼叫，而是选择放在呼叫队列中4)183 Session progress用来警告caller频段(inband)错误。

当从PSTN收到一个ISDN消息，SIP gateway 产生183 Session progress 。

2xx successful Responses200 OK3xx Redirection Responses5)300 Multiple choices说明呼叫的地址被解析成多个地址，所有的地址都被提供出来，用户或用户代理可以从中选择联系哪个。

6)301 Moved permanently说明指定地址的用户已经永远不可用，在头中已经用另外一个地址替换了.7)302 Moved temporarily说明指定地址的用户临时不可用，在头中已经用另外一个地址代替了.8)305 Use proxy说明caller必须用一个proxy来联系callee.9)380 Alternative service说明call不成功，但是可选择其他的服务4xx Request Failure Responses10)400 Bad Request说明由于非法格式，请求不能被理解。

11)401 Unauthorized说明请求需要用户认证。

12)402 Payment required说明完成会话需要付费.13)403 Forbidden说明server已经收到并能理解请求但不提供服务。

14)404 Not Found说明server有明确的信息在指定的域中用户不存在.15)405 Method Not Allowed说明请求中指定的方法是不被允许的。

为⼤家收集整理了《CCNA认证考试真题》供⼤家参考，希望对⼤家有所帮助（1）TCP/IP Addressing and Protocol1: Your junior network administrator wants to know what the default subnet mask is for a Class C IP address. What do you tell him?A. 255.0.0.0B. 255.255.0.0C. 255.245.255.0D. 255.255.255.0E. 255.255.255.255 2: An application needs to have reliable, end-to-end connect-ivity. Which of the following protocols will give you reliable connectivity?A. TCPB. UDPC. IPD. ICMP 3: You are designing a network, which needs to support 55 users. You don't plan to extend the segment beyond the current number of users. Which subnet mask would best meet your needs?A. 255.255.0.0B. 255.255.255.0C. 255.255.255.192D. 255.255.255.160 4: You have added a new switch to your network. You want to manage it remotely, so you need to assign it an IP address. Your router that connects to the switch has an IP address of 172.16.12.33/27. Which of the following addresses can you assign to this switch?A. 172.16.12.33/28B. 172.16.12.32/27C. 172.16.12.33/27D. 172.16.12.34/27E. 172.16.12.35/28F. 172.16.12.38/28G. 172.16.12.63/27 5: The address 172.16.208.16/20 is a host address in which of the following subnets? A. 172.16.176.0–255.255.240.0B. 172.16.192.0–255.255.240.0C. 172.16.208.0–255.255.240.0D. 172.16.224.0–255.255.240.0 6: You are designing an IP address scheme for your brand new remote office. The vice president of IT calls to tell you that you will be in charge of the 192.168.1.64/26 subnetwork. This supplies you with a single subnetwork with 62 hosts. You need to have at least two subnets with 14 hosts in each subnet. What custom subnet mask should you use?A. 255.255.255.128B. 255.255.255.192C. 255.255.255.224D. 255.255.255.240E. 255.255.255.248 7: You have subnetted the 210.106.14.0 network with a /24 mask. Your boss at Acme, Inc. wants to know how many usable subnetworks and usable host addresses per subnet this would provide. What should you tell her?A. One network with 254 hostsB. Two networks with 128 hostsC. Four networks with 64 hostsD. Six networks with 30 hosts 8: Identify three valid host addresses in any subnet of the 201.168.27.0 network, assuming a fixed subnet mask of 255.255.255.240. (Choose three.)A. 201.168.27.33B. 201.168.27.112C. 201.168.27.119D. 201.168.27.126E. 201.168.27.175F. 201.168.27.208 9: What is the subnetwork address for a host with the IP address 201.100.5.68/28?A. 201.100.5.0B. 201.100.5.32C. 201.100.5.64D. 201.100.5.65E. 201.100.5.31F. 201.100.5.1 10: Which of the following protocols uses a three-way handshake mechanism to establish sessions?A. TCPB. IPC. UDPD. IPXE. Frame relay 11: Which of the following protocols is connection-oriented? A. TCPB. IPC. IPXD. Frame relay 12: You are using an application on your Windows 2000 client machines that provides error correction. You need a protocol to provide fast transport. Which protocol should your application use?A. TCPB. IPC. UDPD. SPXE. AppleTalk 13: When using TCP, after a session is open, the applications can adjust the number of segments they receive before sending an acknowledgment. This behavior is known as ______________.A. MTU adjustmentB. WindowingC. Flexible Send PathD. FCS 14: If the destination did not receive a segment, how will the TCP host know to resend the information?A. The ACK received will not include the segment number that was not received.B. The ACK received will include the segment number that was not received.C. The sending host will send a PACK to verify segment receipt.D. The destination host will send a YACK message back to the sending host. 15: You are planning on using a single network that supports 208 users. Which IP address class would you choose to be the most efficient?A. Class AB. Class BC. Class CD. Class DE. Class E 16: RFC 1918 defines the private IP address ranges. Which of the following IP addresses are considered part of these ranges? (Choose three.)A. 10.23.45.67B. 126.21.34.56C. 172.16.32.1D. 172.31.234.55E. 192.169.4.5 17: A new network is being designed for your company, Acme, Inc. If you use a Class C IP network, which subnet mask will provide one usable subnet per department while allowing enough usable host addresses for each department specified in the table?Department Number of Users Corporate 7 Customer Support 15 Financial 13 HR 7 Engineering 16 A. 255.255.255.0B. 255.255.255.192C. 255.255.255.224D. 255.255.255.240E. 255.255.255.248 18: Which of these protocols provides data transport, relying on the error correction capabilities of the application itself?A. UDPB. TCPC. SNMPD. ICMP 19: Which of the following are used by TCP to ensure reliable delivery of data? (Choose two.)A. MAC address resolutionB. Sequence numbersC. AcknowledgmentsD. PingE. Routing updates 20: You discover that you are able to adjust the window size of the TCP segment. You increase the window size to test the results. What will you observe happening on your network?A. Increased throughputB. Decreased throughputC. Increased latencyD. Decreased reliability21: Your organization is using the 192.168.1.0/24 address space. You need 28 subnets. What subnet mask would you use to create these subnets?A. 255.255.255.0B. 255.255.255.128C. 255.255.255.192D. 255.255.255.224E. 255.255.255.240F. 255.255.255.248 22: Which of the following protocols maps IP addresses to MAC addresses for connectivity to occur between two hosts?A. ARPB. RARPC. SLARPD. DHCP 23: Your junior network administrator cannot seem to ping a host in another network and asks you why it isn't working. Which of the following is not an answer that you would give him?A. The host's default gateway is down.B. The destination host is not powered on.C. The IP address of the router interface is incorrect.D. The IP address of the switch to which the destination host connects is incorrect.E. The host is in a different subnet. 24: Which of the following classes of IP addresses is utilized for multicasting?A. Class AB. Class BC. Class CD. Class D 25: You give your IT department a spreadsheet of IP addresses and their subnets. You receive a call from one of the junior techs asking what the /26 means next to the IP addresses. You tell her: A. It represents the number of hosts possible on that subnetwork.B. It represents the number of subnetworks that are being used.C. It represents the class of IP address being used.D. It represents the number of bits in the subnet mask that are 1. 26: You are given an IP network of 192.168.5.0 and told that you need to separate this network into subnetworks that can support a maximum of 16 hosts per subnet. This will help alleviate congestion on the network. What subnet mask can you use to create the subnets necessary to meet the given criteria?A. 255.0.0.0B. 255.255.0.0C. 255.255.255.0D. 255.255.255.224E. 255.255.255.240 27: Which of the following would a Class A network be assigned to?A. Government agencyB. Small-to-medium sized corporationD. An individual 28: A client has the IP address 192.168.5.98/27. Which of the following addresses are on the same subnet as this host? (Choose two.)A. 192.168.5.95B. 192.168.5.100C. 192.168.5.128D. 192.168.5.110 29: Which of the following IP addresses is not a public IP address that can be routed over the Internet?A. 2.3.4.5B. 11.12.13.14C. 165.23.224.2D. 172.31.45.34E. 203.33.45.22 30: You are given a Class B network. What is the default subnet mask assigned to the Class B network?A. 255.255.255.255B. 255.255.0.0C. 255.224.0.0D. 0.0.0.0 31: You are troubleshooting your router's interfaces. For some reason, the Ethernet interface will not accept the IP address of 192.168.5.95/27 that you've assigned. Which of the following explains the router's refusal to take the IP address?A. Class C addresses cannot be assigned to Ethernet interfaces.B. The /27 is an invalid mask.C. It is a broadcast address.D. It is a public IP address.E. It is a private IP address. 32: You are a network technician at Acme, Inc. You are required to divide the 172.12.0.0 network into subnets. Each subnet must have the capacity of 458 IP addresses. Also, according to the requirements, you must provide the maximum number of subnets. Which subnet mask should you use?A. 255.255.255.254B. 255.255.254.0C. 255.255.240.254D. 255.255.0.0 33: What is the subnetwork and broadcast IP address of 192.168.2.37 with the subnet mask of255.255.255.248?A. 192.168.2.24/192.168.2.31B. 192.168.2.32/192.168.2.39C. 192.168.2.40/192.168.2.47D. 192.168.2.48/192.168.2.55E. 192.168.2.56/192.168.2.63 34: One of your co-workers at Acme, Inc., needs to convert the binary number 11011010 into a decimal. What is the decimal equivalent?A. 218B. 219C. 220E. 222 35: One of your co-workers at Acme, Inc., needs to convert the binary number 01011010 into a decimal. What is the decimal equivalent?A. 75B. 83C. 90D. 97 36: One of your co-workers at Acme, Inc., needs to convert the binary num b e r 1 1 0 1 0 1 1 0 i n t o a d e c i m a l . W h a t i s t h e d e c i m a l e q u i v a l e n t ? / p > p b d s f i d = " 2 1 0 " > A . 1 9 8 / p > p b d s f i d = " 2 1 1 " > B . 2 1 4 / p > p b d s f i d = " 2 1 2 " > C . 2 5 2 / p > p b d s f i d = " 2 1 3 " > D . 2 5 5 3 7 : O n e o f y o u r c o - w o r k e r s a t A c m e , I n c . , n e e d s t o c o n v e r t t h e b i n a r y n u m b e r 1 0 1 1 0 1 1 0 i n t o a d e c i m a l . W h a t i s t h e d e c i m a l e q u i v a l e n t / p > p b d s f i d = " 2 1 4 " > A . 1 8 2 / p > p b d s f i d = " 2 1 5 " > B . 1 9 2 / p > p b d s f i d = " 2 1 6 " > C . 2 0 2 / p > p b d s f i d = " 2 1 7 " > D . 2 1 2 3 8 : Y o u a r e c o n f i g u r i n g a s u b n e t f o r t h e A c m e , I n c . , b r a n c h o f f i c e i n B e i j i n g . Y o u n e e d t o a s s i g n I P a d d r e s s e s t o h o s t s i n t h i s s u b n e t . Y o u h a v e b e e n g i v e n t h e s u b n e t m a s k o f 2 5 5 . 2 5 5 . 2 5 5 . 2 2 4 . W h i c h o f t h e s e I P a d d r e s s e s w o u l d b e v a l i d ? ( C h o o s e t h r e e . ) / p > p b d s f i d = " 2 1 8 " > A . 1 5 . 2 3 4 . 1 1 8 . 6 3 / p > p b d s f i d = " 2 1 9 " > B . 9 2 . 1 1 . 1 7 8 . 9 3 / p > p b d s f i d = " 2 2 0 " > C . 1 3 4 . 1 7 8 . 1 8 . 5 6 / p > p b d s f i d = " 2 2 1 " > D . 1 9 2 . 1 6 8 . 1 6 . 8 7 / p > p b d s f i d = " 2 2 2 " > E . 2 0 1 . 4 5 . 1 1 6 . 1 5 9 / p > p b d s f i d = " 2 2 3 " > F . 2 1 7 . 6 3 . 1 2 . 1 9 2 3 9 : Y o u a r e a n e t w o r k t e c h n i c i a n a t A c m e , I n c . Y o u h a v e s u b n e t t e d t h e 2 0 8 . 9 8 . 1 1 2 . 0 n e t w o r k w i t h a / 2 8 m a s k . Y o u r b o s s a s k s y o u h o w m a n y u s a b l e s u b n e t w o r k s a n d u s a b l e h o s t a d d r e s s e s p e r s u b n e t t h i s w i l l p r o v i d e . W h a t s h o u l d y o u t e l l h e r , a s s u m i n g y o u r r o u t e r i s u s i n g i p s u b n e t - z e r o ? / p > p b d s f i d = " 2 2 4 " > A . 62 n e t w o r k s a n d 2 h o s t s / p > p b d s f i d = " 2 2 5 " > B . 6 n e t w o r k s a n d3 0 h o s t s / p > p b d s f i d = " 2 2 6 " >C . 8 n e t w o r k s a n d 3 2 h o s t s / p > p b d s f i d = " 2 2 7 " >D . 1 6 n e t w o r k s a n d 1 6 h o s t s / p > p b d s f i d = " 22 8 " > E . 1 6 n e t w o r k s a n d 1 4 h o s t s 4 0 : W h a t i s a d i s a d v a n t a g e o f u s i n g a c o n n e c t i o n - o r i e n t ed p r o t o c o l s u c h a s T C P ? / p > p b d s f i d = " 2 2 9 " > A . P a c ke t a c k n o w l e d g m e n t m i g h t a d d o v e r h ea d . / p > pb d s f i d = " 2 3 0 " > B . P ac k e t s a r e n o t t a g g ed w i t h se q u e n c e n u m b e r s . / p > p b d sf i d = " 23 1 " > C . L o s s o r d u p l i c a t i o n o f d a t a p a c k e t s i s m o r e l i k e l y t o o c c u r . / p > p b d s f i d = " 2 3 2 " > D . Th e a p p l i c a t i o n l a y e r m u s t a s s u m e r e s p o n s i b i l i t y f o r t h e c o r r e c t s e q u e n c i n g o f t h e d a t a p ac k e t s . 4 1 : Y o u a r e a n e t w o r k t e c h n i c i a n a t A c m e , I n c . Y o u h a v e s u b n e t t ed t he 1 9 2 . 1 6 8 . 7 2 .0 n e t w o r k w i t h a / 3 0 m a s k f o r c o n n e c t i o n s b e t w e e n y o u r r o u t e r s . Y o u r b o s s a s k s y o u h o w m a n y u s a b l e s u b n e t w o r k s a n d u s a b l e h o s t a d d r e s s e s p e r s u b n e t t h i s w i l l p r o v i d e . W h a t s h o u l d y o u t e l l h e r , a s s u m i n g y o u r r o u t e r c a n n o t u s e i p s u b n e t - z e r o ? / p > p b d s f i d = " 2 3 3 " > A . 6 2 n e t w o r k s a n d 2 h o s t s / p > p b d s f i d = " 2 3 4 " > B . 6 n e t w o r k s a n d 3 0 h o s t s / p > p b d s f i d = " 2 3 5 " > C .8 n e t w o r k s a n d 3 2 h o s t s / p > p b d s f i d = " 2 3 6 " > D . 1 6 n e t w o r k s a n d 1 6 h o s t s / p > p b d s f i d = " 2 3 7 " > E . 1 4 n e t w o r k s a n d 1 4 h o s t s 4 2 : W h i c h o f t h e f o l l o w i n g I P a d d r e s s e s a r e c o n s i d e r e d " n e t w o r k " a d d r e s s e s w i t h a / 2 6 p r e f i x ? ( C h o o s e t w o . ) / p > p b d s f i d = " 2 3 8 " > A . 1 6 5 . 2 0 3 . 2 . 0 / p > p b d s f i d = " 2 3 9 " > B . 1 6 5 . 2 0 3 . 5 . 1 9 2 / p > p b d s f i d = " 2 4 0 " > C . 1 6 5 . 2 0 3 . 6 . 6 3 / p > p b d s f i d = " 2 4 1 " > D . 1 6 5 . 2 0 3 . 6 . 1 9 1 / p > p b d s f i d = " 2 4 2 " > E . 1 6 5 . 2 0 3 . 8 . 2 5 5 4 3 : I d e n t i f y t h r e e v a l i d h o s t s i n a n y s u b n e t o f 1 9 2 . 1 6 8 . 3 2 . 0 , a s s u m i n g t h e s u b n e t m a s k u s e d i s 2 5 5 . 2 5 5 . 2 5 5 . 2 4 0 . ( C h o o s e t h r e e . ) / p > p b d s f i d = " 2 4 3 " > A . 1 9 2 . 1 6 8 . 3 2 . 3 3 / p > p b d s f i d = " 2 4 4 " > B . 1 9 2 . 1 6 8 . 3 2 . 1 1 2 / p > p b d s f i d = " 2 4 5 " > C . 1 9 2 . 1 6 8 . 3 2 . 1 1 9 / p > p b d s f i d = " 2 4 6 " > D . 1 9 2 . 1 6 8 . 3 2 . 1 2 6 / p > p b d s f i d = " 2 4 7 " > E . 1 9 2 . 1 6 8 . 3 2 . 1 7 5 / p > p b d s f i d = " 2 4 8 " > F . 1 9 2 . 1 6 8 . 3 2 . 2 0 8 4 4 : A C l a s s C n e t w o r k a d d r e s s h a s b e e n s u b n e t t e d w i t h a / 2 7 m a s k . W h i c h o f t h e f o l l o w i n g a d d r e s s e s i s a b r o a d c a s t a d d r e s s f o r o n e o f t h e r e s u l t i n g s u b n e t s ? / p > p b d s f i d = " 2 4 9 " > A . 1 9 8 . 5 7 . 7 8 . 3 3 / p > p b d s fi d = " 2 5 0 " > B . 1 9 8 . 5 7 . 7 8 . 6 4 / p > p b d s f i d = " 2 5 1 " > C . 1 9 8 . 5 7 . 7 8 . 9 7 / p > p b d s f i d = " 2 5 2 " > D . 1 98 . 5 7 . 7 8 . 9 7 / p > p b d s f i d = " 2 5 3 " > E . 1 9 8 . 5 7 . 7 8 . 1 5 9 / p > p b d s f i d = " 2 5 4 " > F . 1 9 8 . 5 7 . 7 8 . 2 5 4 4 5 : W h a t i s t h e s u b n e t w o r k a d d r e s s f o r a h o s t w i t h I P a d d r e s s 1 6 5 . 1 0 0 . 5 . 6 8 / 2 8 ? / p > p b d s f i d = " 2 5 5 " > A . 1 6 5 . 1 0 0 . 5 . 0 / p > p b d s f i d = " 2 5 6 " > B . 1 6 5 . 1 0 0 . 5 . 3 2 / p > p b d s f i d = " 2 5 7 " > C . 1 6 5 . 1 0 0 . 5 . 6 4 / p > p b d s f i d = " 2 5 8 " > D . 1 6 5 . 1 0 0 . 5 . 6 5 / p > p b d s f i d = " 2 5 9 " > E . 1 6 5 . 1 0 0 . 5 . 3 1 / p > p b d s f i d = " 2 6 0 " > F . 1 6 5 . 1 0 0 . 5 . 1 4 6 : Y o u r b o s s w a n t s t o k n o w w h a t T C P s t a n d s f o r . W h a t d o y o u t e l l h i m ? / p > p b d s f i d = " 2 6 1 " > A . T r a n s m i s s i o n C h e c k P r o t o c o l / p > p b d s f i d = " 2 6 2 " > B . T r a n s p o r t C h e c k P r o t o c o l / p > p b d s f i d = " 2 6 3 " > C . T r a n s m i s s i o n C o n t r o l P r o t o c o l / p > p b d s f i d = " 2 6 4 " > D . T r a n s p o r t C o n t r o l P r o t o c o l 4 7 : Y o u r b o s s w a n t s t o k n o w w h a t U D P s t a n d s f o r . W h a t d o y o u t e l l h i m ? / p > p b d s f i d = " 2 6 5 " > A . U n r e l i a b l e D a t a P r o t o c o l / p > p b d s f i d = " 2 6 6 " > B . U n r e l i a b l e D a t a P r o g r a m / p > p b d s f i d = " 2 6 7 " > C . U s e r - D e f i n e d P r o t o c o l / p > p b d s f i d = " 2 6 8 " > D . U s e r D a t a g r a m P r o t o c o l 4 8 : W h i c h o f t h e f o l l o w i n g s t a t e m e n t s a c c u r a t e l y d e s c r i b e s U D P ? / p > p b d s f i d = " 2 6 9 " > A . U D P c o p i e s f i l e s b e t w e e n a c o m p u t e r a n d a s y s t e m r u n n i n g r s h d , t h e r e m o t e s h e l l s e r v i c e ( d a e m o n ) . / p > p b d s f i d = " 2 7 0 " > B . U D P i s a m e m b e r o f t h e T C P / I P s u i t e o f p r o t o c o l s t h a t g o v e r n s t h e e x c h a n g e o f e l e c t r o n i c m a i l b e t w e e n m e s s a g e t r a n sf e r ag e n t s . / p > p b d s f i d = " 2 7 1 " > C . U D P i s a m e m b e r o f th e T C P / I P s ui t e o f p r o t o c o l s a n d i s u s e d t o c o p y f i l e s b e t w e e n t w o c o m p u t e r s o n t h e I n t e r n e t . B o t h c o m p u t e r s m u s t s u p p o r t t h e i r r e s p e c t i v e r o l e s : o n e m u s t b e a c l i e n t , a n d t h e o t h e r a s e r v e r . / p > p b d s f i d = " 2 7 2 " > D . U D P i s a T C P c o m p l e m e n t t h a t o f f e r s a c o n n e c t i o n l e s s d a t a g r a m s e r v i c e g u a r a n t e e i n g n e i t h e r d e l i v e r y n o r c o r r e c t s e q u e n c i n g o f d e l i v e r e d p a c k e t s ( m u c h l i k e I P ) . 4 9 : W h i c h o f t h e f o l l o w i n g h o s t a d d r e s s e s a r e m e m b e r s o f n e t w o r k s t h a t c a n b e r o u t e d a c r o s s t h e p u b l i c I n t e r n e t ( C h o o s e t h r e e . ) / p > p b d s f i d = " 2 7 3 " > A . 1 0 . 2 0 . 1 2 . 6 4 / p > p b d s f i d = " 2 7 4 " > B . 1 7 2 . 1 6 . 3 2 . 12 9 / p > p b d s f i d = " 2 7 5 " > C . 1 7 2 . 6 4 .3 2 . 34 / p > p b d s f i d = " 2 7 6 " > D . 1 9 2 . 1 6 8 . 2 3 . 25 2 / p > p b d s f id = " 2 7 7 " > E . 1 9 6 . 1 0 4 . 1 2 . 9 5 / p > p b d s f i d = " 2 7 8 " > F . 2 1 4 . 1 9 2 . 4 8 . 2 5 4 5 0 : Y o u a re c o n n e c t i n g y o u r S e r i a l 0 / 1 i n t e rf a c e t o t h e I n t e r n e t . W h i c h o f t h e f o l l o w i ng n e e d t o b e d o n e f o r th e c o n n e c ti o n t o w o r k ? ( C h o o s e t w o . ) / p > p b d s f i d = " 2 7 9 " > A . A s s i g n a p u b l i c I P a d d r e s s . / p > p b d s f i d = " 2 8 0 " > B . U s e t h e s h u t d o w n c o m m a n d . / p > p b d s f i d = " 2 8 1 " > C . U s e t h e n o s h u t d o w n c o m m a n d . / p > p b d s f i d = " 2 8 2 " > D . M a k e s u r e t h e i n t e r f a c e i s r u n n i n g i n f u l l - d u p l e x . / p >。

什么是SNMP？简单网络管理协议(SNMP)首先是由Internet工程任务组织(Internet Engineering Task Force)(IETF)的研究小组为了解决Internet上的路由器管理问题而提出的。

许多人认为SNMP在IP上运行的原因是Internet 运行的是TCP/IP协议，然而事实并不是这样。

SNMP被设计成与协议无关，所以它可以在IP，IPX，AppleTalk，OSI以及其他用到的传输协议上被使用。

SNMP是一系列协议组和规范（见下表），它们提供了一种从网络上的设备中收集网络管理信息的方法。

SNMP也为设备向网络管理工作站报告问题和错误提供了一种方法。

名字说明MIB 管理信息库SMI 管理信息的结构和标识SNMP 简单网络管理协议从被管理设备中收集数据有两种方法：一种是只轮询（polling-only）的方法，另一种是基于中断（interrupt-based）的方法。

如果你只使用只轮询的方法，那么网络管理工作站总是在控制之下。

而这种方法的缺陷在于信息的实时性，尤其是错误的实时性。

你多久轮询一次，并且在轮询时按照什么样的设备顺序呢？如果轮询间隔太小，那么将产生太多不必要的通信量。

如果轮询间隔太大，并且在轮询时顺序不对，那么关于一些大的灾难性的事件的通知又会太馒。

这就违背了积极主动的网络管理目的。

当有异常事件发生时，基于中断的方法可以立即通知网络管理工作站（在这里假设该设备还没有崩溃，并且在被管理设备和管理工作站之间仍有一条可用的通信途径）。

然而，这种方法也不是没有他的缺陷的，首先，产生错误或自陷需要系统资源。

如果自陷必须转发大量的信息，那么被管理设备可能不得不消耗更多的时间和系统资源来产生自陷，从而影响了它执行主要的功能（违背了网络管理的原则2）。

而且，如果几个同类型的自陷事件接连发生，那么大量网络带宽可能将被相同的信息所占用（违背了网络管理的原则1）。

尤其是如果自陷是关于网络拥挤问题的时候，事情就会变得特别糟糕。

常用协议端口号(2009-10-10 20:55:49) 转载标签：杂谈分类：技术交流1813端口使用UDP传输3306端口使用TCP传输Tracert 默认使用 UDP 数据包来探测路由路径, 端口为 33434 TCP协议支持协议名称 TCP端口号协议名称解释ACAP 674AIM 5190BEEP 10288CAST 4224CMP 829COPS 3288PKTCABLE_COPS 2126PKTCABLE_MM_COPS 3918DAAP 3689DHCPFO 519DIAMETER 3868DISTCC 3632DLSW 2065NP 20000NS 53DNS 5353DSI 548FTPDATA 20FTP 21GIFT 1213CS 1720HTTP 80PROXY_HTTP 3128 PROXY_ADMIN_HTTP 3132 HKP 11371DAAP 3689SSDP 1900IB 3050ICAP 1344IMAP 143IRC 6667ISAKMP 500JABBER 5222 KERBEROS 88LAPLINK 1547LDAP 389GLOBALCAT_LDAP 3268LDP 646PRINTER 515MBTCP 502MSNMS 1863MSRP 0MySQL 3306NBSS 139CIFS 445NCP 524NDMP 100001/tcp tcpmux TCP Port Service Multiplexer 2/tcp compressnet Management Utility3/tcp compressnet Compression Process 5/tcp rje Remote Job Entry7/tcp echo Echo9/tcp discard Discard11/tcp systat Active Users13/tcp daytime Daytime (RFC 867)17/tcp qotd Quote of the Day18/tcp msp Message Send Protocol19/tcp chargen Character Generator20/tcp ftp-data File Transfer [Default Data] 21/tcp ftp File Transfer [Control]22/tcp ssh SSH Remote Login Protocol23/tcp telnet Telnet24/tcp any private mail system any private mail system25/tcp smtp Simple Mail Transfer27/tcp nsw-fe NSW User System FE29/tcp msg-icp MSG ICP31/tcp msg-auth MSG Authentication33/tcp dsp Display Support Protocol35/tcp any private printer server any private printer server 37/tcp time Time38/tcp rap Route Access Protocol39/tcp rlp Resource Location Protocol41/tcp graphics Graphics42/tcp nameserver Host Name Server43/tcp nicname Who Is44/tcp mpm-flags MPM FLAGS Protocol45/tcp mpm Message Processing Module [recv]46/tcp mpm-snd MPM [default send]47/tcp ni-ftp NI FTP48/tcp auditd Digital Audit Daemon49/tcp tacacs Login Host Protocol (TACACS)50/tcp re-mail-ck Remote Mail Checking Protocol51/tcp la-maint IMP Logical Address Maintenance52/tcp xns-time XNS Time Protocol53/tcp domain Domain Name Server54/tcp xns-ch XNS Clearinghouse55/tcp isi-gl ISI Graphics Language56/tcp xns-auth XNS Authentication57/tcp any private terminal access any private terminal access 58/tcp xns-mail XNS Mail59/tcp any private file service any private file service60/tcp Unassigned Unassigned61/tcp ni-mail NI MAIL62/tcp acas ACA Services63/tcp whois++ whois++64/tcp covia Communications Integrator (CI)65/tcp tacacs-ds TACACS-Database Service66/tcp sql*net Oracle SQL*NET67/tcp bootps Bootstrap Protocol Server68/tcp bootpc Bootstrap Protocol Client69/tcp tftp Trivial File Transfer70/tcp gopher Gopher71/tcp netrjs-1 Remote Job Service72/tcp netrjs-2 Remote Job Service73/tcp netrjs-3 Remote Job Service74/tcp netrjs-4 Remote Job Service75/tcp any private dial out service any private dial out service 76/tcp deos Distributed External Object Store77/tcp any private RJE service any private RJE service78/tcp vettcp vettcp79/tcp finger Finger80/tcp http-www World Wide Web HTTP81/tcp hosts2-ns HOSTS2 Name Server82/tcp xfer XFER Utility83/tcp mit-ml-dev MIT ML Device84/tcp ctf Common Trace Facility85/tcp mit-ml-dev MIT ML Device86/tcp mfcobol Micro Focus Cobol87/tcp any private terminal link any private terminal link88/tcp kerberos Kerberos89/tcp su-mit-tg SU/MIT Telnet Gateway90/tcp dnsix DNSIX Securit Attribute Token Map91/tcp mit-dov MIT Dover Spooler92/tcp npp Network Printing Protocol93/tcp dcp Device Control Protocol94/tcp objcall Tivoli Object Dispatcher95/tcp supdup SUPDUP96/tcp dixie DIXIE Protocol Specification97/tcp swift-rvf Swift Remote Virtural File Protocol98/tcp tacnews TAC News99/tcp metagram Metagram Relay101/tcp hostname NIC Host Name Server102/tcp iso-tsap ISO-TSAP Class 0103/tcp gppitnp Genesis Point-to-Point Trans Net104/tcp acr-nema ACR-NEMA Digital Imag. & Comm. 300 105/tcp cso CCSO name server protocol105/tcp csnet-ns Mailbox Name Nameserver106/tcp 3com-tsmux 3COM-TSMUX107/tcp rtelnet Remote Telnet Service108/tcp snagas SNA Gateway Access Server109/tcp pop2 Post Office Protocol - Version 2110/tcp pop3 Post Office Protocol - Version 3111/tcp sunrpc SUN Remote Procedure Call112/tcp mcidas McIDAS Data Transmission Protocol113/tcp ident114/tcp audionews Audio News Multicast115/tcp sftp Simple File Transfer Protocol116/tcp ansanotify ANSA REX Notify117/tcp uucp-path UUCP Path Service118/tcp sqlserv SQL Services119/tcp nntp Network News Transfer Protocol120/tcp cfdptkt CFDPTKT121/tcp erpc Encore Expedited Remote Pro.Call122/tcp smakynet SMAKYNET123/tcp ntp Network Time Protocol124/tcp ansatrader ANSA REX Trader125/tcp locus-map Locus PC-Interface Net Map Ser126/tcp unitary Unisys Unitary Login127/tcp locus-con Locus PC-Interface Conn Server128/tcp gss-xlicen GSS X License Verification129/tcp pwdgen Password Generator Protocol130/tcp cisco-fna cisco FNATIVE131/tcp cisco-tna cisco TNATIVE132/tcp cisco-sys cisco SYSMAINT133/tcp statsrv Statistics Service134/tcp ingres-net INGRES-NET Service135/tcp epmap DCE endpoint resolution136/tcp profile PROFILE Naming System137/tcp netbios-ns NETBIOS Name Service138/tcp netbios-dgm NETBIOS Datagram Service139/tcp netbios-ssn NETBIOS Session Service140/tcp emfis-data EMFIS Data Service141/tcp emfis-cntl EMFIS Control Service142/tcp bl-idm Britton-Lee IDM143/tcp imap Internet Message Access Protocol144/tcp uma Universal Management Architecture145/tcp uaac UAAC Protocol146/tcp iso-tp0 ISO-IP0147/tcp iso-ip ISO-IP148/tcp jargon Jargon149/tcp aed-512 AED 512 Emulation Service150/tcp sql-net SQL-NET151/tcp hems HEMS152/tcp bftp Background File Transfer Program153/tcp sgmp SGMP154/tcp netsc-prod NETSC155/tcp netsc-dev NETSC156/tcp sqlsrv SQL Service157/tcp knet-cmp KNET/VM Command/Message Protocol 158/tcp pcmail-srv PCMail Server159/tcp nss-routing NSS-Routing160/tcp sgmp-traps SGMP-TRAPS161/tcp snmp SNMP162/tcp snmptrap SNMPTRAP163/tcp cmip-man CMIP/TCP Manager164/tcp cmip-agent CMIP/TCP Agent165/tcp xns-courier Xerox166/tcp s-net Sirius Systems167/tcp namp NAMP168/tcp rsvd RSVD169/tcp send SEND170/tcp print-srv Network PostScript171/tcp multiplex Network Innovations Multiplex172/tcp cl/1 Network Innovations CL/1173/tcp xyplex-mux Xyplex174/tcp mailq MAILQ175/tcp vmnet VMNET176/tcp genrad-mux GENRAD-MUX177/tcp xdmcp X Display Manager Control Protocol178/tcp nextstep NextStep Window Server179/tcp bgp Border Gateway Protocol180/tcp ris Intergraph181/tcp unify Unify182/tcp audit Unisys Audit SITP183/tcp ocbinder OCBinder184/tcp ocserver OCServer185/tcp remote-kis Remote-KIS186/tcp kis KIS Protocol187/tcp aci Application Communication Interface188/tcp mumps Plus Five's MUMPS189/tcp qft Queued File Transport190/tcp gacp Gateway Access Control Protocol191/tcp prospero Prospero Directory Service192/tcp osu-nms OSU Network Monitoring System193/tcp srmp Spider Remote Monitoring Protocol194/tcp irc Internet Relay Chat Protocol195/tcp dn6-nlm-aud DNSIX Network Level Module Audit 196/tcp dn6-smm-red DNSIX Session Mgt Module Audit Redir 197/tcp dls Directory Location Service198/tcp dls-mon Directory Location Service Monitor199/tcp smux SMUX200/tcp src IBM System Resource Controller201/tcp at-rtmp AppleT alk Routing Maintenance202/tcp at-nbp AppleT alk Name Binding203/tcp at-3 AppleT alk Unused204/tcp at-echo AppleT alk Echo205/tcp at-5 AppleT alk Unused206/tcp at-zis AppleT alk Zone Information207/tcp at-7 AppleT alk Unused208/tcp at-8 AppleT alk Unused209/tcp qmtp The Quick Mail Transfer Protocol210/tcp z39.50 ANSI Z39.50211/tcp 914c/g Texas Instruments 914C/G Terminal 212/tcp anet ATEXSSTR214/tcp vmpwscs VM PWSCS215/tcp softpc Insignia Solutions216/tcp CAIlic Computer Associates Int'l License Server 217/tcp dbase dBASE Unix218/tcp mpp Netix Message Posting Protocol219/tcp uarps Unisys ARPs220/tcp imap3 Interactive Mail Access Protocol v3 221/tcp fln-spx Berkeley rlogind with SPX auth222/tcp rsh-spx Berkeley rshd with SPX auth223/tcp cdc Certificate Distribution Center242/tcp direct Direct243/tcp sur-meas Survey Measurement244/tcp dayna Dayna245/tcp link LINK246/tcp dsp3270 Display Systems Protocol247/tcp subntbcst_tftp SUBNTBCST_TFTP248/tcp bhfhs bhfhs256/tcp rap RAP257/tcp set Secure Electronic Transaction258/tcp yak-chat Yak Winsock Personal Chat259/tcp esro-gen Efficient Short Remote Operations 260/tcp openport Openport263/tcp hdap HDAP264/tcp bgmp BGMP280/tcp http-mgmt http-mgmt309/tcp entrusttime EntrustTime310/tcp bhmds bhmds312/tcp vslmp VSLMP315/tcp dpsi DPSI316/tcp decauth decAuth317/tcp zannet Zannet321/tcp pip PIP344/tcp pdap Prospero Data Access Protocol345/tcp pawserv Perf Analysis Workbench346/tcp zserv Zebra server347/tcp fatserv Fatmen Server348/tcp csi-sgwp Cabletron Management Protocol349/tcp mftp mftp351/tcp matip-type-b MATIP Type B351/tcp bhoetty bhoetty (added 5/21/97)353/tcp ndsauth NDSAUTH354/tcp bh611 bh611357/tcp bhevent bhevent362/tcp srssend SRS Send365/tcp dtk DTK366/tcp odmr ODMR368/tcp qbikgdp QbikGDP371/tcp clearcase Clearcase372/tcp ulistproc ListProcessor373/tcp legent-1 Legent Corporation374/tcp legent-2 Legent Corporation375/tcp hassle Hassle376/tcp nip Amiga Envoy Network Inquiry Proto377/tcp tnETOS NEC Corporation378/tcp dsETOS NEC Corporation379/tcp is99c TIA/EIA/IS-99 modem client380/tcp is99s TIA/EIA/IS-99 modem server381/tcp hp-collector hp performance data collector383/tcp hp-alarm-mgr hp performance data alarm manager 384/tcp arns A Remote Network Server System385/tcp ibm-app IBM Application386/tcp asa ASA Message Router Object Def.387/tcp aurp Appletalk Update-Based Routing Pro.388/tcp unidata-ldm Unidata LDM Version 4389/tcp ldap Lightweight Directory Access Protocol390/tcp uis UIS391/tcp synotics-relay SynOptics SNMP Relay Port393/tcp dis Data Interpretation System394/tcp embl-ndt EMBL Nucleic Data Transfer395/tcp netcp NETscout Control Protocol396/tcp netware-ip Novell Netware over IP397/tcp mptn Multi Protocol Trans. Net.398/tcp kryptolan Kryptolan399/tcp iso-tsap-c2 ISO Transport Class 2 Non-Control over TCP 400/tcp work-sol Workstation Solutions401/tcp ups Uninterruptible Power Supply402/tcp genie Genie Protocol403/tcp decap decap404/tcp nced nced405/tcp ncld ncld406/tcp imsp Interactive Mail Support Protocol407/tcp timbuktu Timbuktu408/tcp prm-sm Prospero Resource Manager Sys. Man.409/tcp prm-nm Prospero Resource Manager Node Man.410/tcp decladebug DECLadebug Remote Debug Protocol411/tcp rmt Remote MT Protocol412/tcp synoptics-trap Trap Convention Port413/tcp smsp SMSP414/tcp infoseek InfoSeek415/tcp bnet BNet416/tcp silverplatter Silverplatter417/tcp onmux Onmux418/tcp hyper-g Hyper-G419/tcp ariel1 Ariel420/tcp smpte SMPTE421/tcp ariel2 Ariel422/tcp ariel3 Ariel423/tcp opc-job-start IBM Operations Planning and Control Start 424/tcp opc-job-track IBM Operations Planning and Control Track 425/tcp icad-el ICAD426/tcp smartsdp smartsdp427/tcp svrloc Server Location428/tcp ocs_cmu OCS_CMU429/tcp ocs_amu OCS_AMU430/tcp utmpsd UTMPSD431/tcp utmpcd UTMPCD432/tcp iasd IASD433/tcp nnsp NNSP434/tcp mobileip-agent MobileIP-Agent435/tcp mobilip-mn MobilIP-MN436/tcp dna-cml DNA-CML437/tcp comscm comscm438/tcp dsfgw dsfgw439/tcp dasp dasp Thomas Obermair440/tcp sgcp sgcp441/tcp decvms-sysmgt decvms-sysmgt442/tcp cvc_hostd cvc_hostd443/tcp https http protocol over TLS/SSL444/tcp snpp Simple Network Paging Protocol445/tcp microsoft-ds Microsoft-DS446/tcp ddm-rdb DDM-RDB447/tcp ddm-dfm DDM-RFM448/tcp ddm-ssl DDM-SSL449/tcp as-servermap AS Server Mapper450/tcp tserver TServer451/tcp sfs-smp-net Cray Network Semaphore server453/tcp creativeserver CreativeServer454/tcp contentserver ContentServer455/tcp creativepartnr CreativePartnr456/tcp macon-tcp macon-tcp457/tcp scohelp scohelp458/tcp appleqtc apple quick time459/tcp ampr-rcmd ampr-rcmd460/tcp skronk skronk461/tcp datasurfsrv DataRampSrv462/tcp datasurfsrvsec DataRampSrvSec463/tcp alpes alpes464/tcp kpasswd kpasswd465/tcp smtps smtp protocol over TLS/SSL (was ssmtp)466/tcp digital-vrc digital-vrc467/tcp mylex-mapd mylex-mapd468/tcp photuris proturis469/tcp rcp Radio Control Protocol470/tcp scx-proxy scx-proxy471/tcp mondex Mondex472/tcp ljk-login ljk-login473/tcp hybrid-pop hybrid-pop474/tcp tn-tl-w1 tn-tl-w1475/tcp tcpnethaspsrv tcpnethaspsrv476/tcp tn-tl-fd1 tn-tl-fd1477/tcp ss7ns ss7ns478/tcp spsc spsc479/tcp iafserver iafserver480/tcp iafdbase iafdbase481/tcp ph Ph service482/tcp bgs-nsi bgs-nsi483/tcp ulpnet ulpnet484/tcp integra-sme Integra Software Management Environment 485/tcp powerburst Air Soft Power Burst486/tcp avian avian487/tcp saft saft Simple Asynchronous File Transfer488/tcp gss-http gss-http489/tcp nest-protocol nest-protocol490/tcp micom-pfs micom-pfs491/tcp go-login go-login492/tcp ticf-1 Transport Independent Convergence for FNA493/tcp ticf-2 Transport Independent Convergence for FNA494/tcp pov-ray POV-Ray495/tcp intecourier intecourier496/tcp pim-rp-disc PIM-RP-DISC497/tcp dantz dantz498/tcp siam siam499/tcp iso-ill ISO ILL Protocol500/tcp isakmp isakmp501/tcp stmf STMF502/tcp asa-appl-proto asa-appl-proto503/tcp intrinsa Intrinsa504/tcp citadel citadel505/tcp mailbox-lm mailbox-lm506/tcp ohimsrv ohimsrv507/tcp crs crs508/tcp xvttp xvttp509/tcp snare snare510/tcp fcp FirstClass Protocol511/tcp passgo PassGo512/tcp exec remote process execution;513/tcp login remote login a la telnet;514/tcp shell cmd515/tcp printer spooler516/tcp videotex videotex517/tcp talk like tenex link, but across518/tcp ntalk519/tcp utime unixtime520/tcp efs extended file name server521/tcp ripng ripng522/tcp ulp ULP523/tcp ibm-db2 IBM-DB2524/tcp ncp NCP525/tcp timed timeserver526/tcp tempo newdate527/tcp stx Stock IXChange528/tcp custix Customer IXChange529/tcp irc-serv IRC-SERV530/tcp courier rpc531/tcp conference chat532/tcp netnews readnews533/tcp netwall for emergency broadcasts534/tcp mm-admin MegaMedia Admin535/tcp iiop iiop536/tcp opalis-rdv opalis-rdv537/tcp nmsp Networked Media Streaming Protocol538/tcp gdomap gdomap539/tcp apertus-ldp Apertus Technologies Load Determination540/tcp uucp uucpd541/tcp uucp-rlogin uucp-rlogin542/tcp commerce commerce543/tcp klogin544/tcp kshell krcmd545/tcp appleqtcsrvr appleqtcsrvr546/tcp dhcpv6-client DHCPv6 Client547/tcp dhcpv6-server DHCPv6 Server548/tcp afpovertcp AFP over TCP549/tcp idfp IDFP550/tcp new-rwho new-who551/tcp cybercash cybercash552/tcp deviceshare deviceshare553/tcp pirp pirp554/tcp rtsp Real Time Stream Control Protocol555/tcp dsf556/tcp remotefs rfs server557/tcp openvms-sysipc openvms-sysipc558/tcp sdnskmp SDNSKMP559/tcp teedtap TEEDTAP560/tcp rmonitor rmonitord561/tcp monitor562/tcp chshell chcmd563/tcp nntps nntp protocol over TLS/SSL (was snntp) 564/tcp 9pfs plan 9 file service565/tcp whoami whoami566/tcp streettalk streettalk567/tcp banyan-rpc banyan-rpc568/tcp ms-shuttle microsoft shuttle569/tcp ms-rome microsoft rome570/tcp meter demon571/tcp meter udemon572/tcp sonar sonar573/tcp banyan-vip banyan-vip574/tcp ftp-agent FTP Software Agent System575/tcp vemmi VEMMI576/tcp ipcd ipcd577/tcp vnas vnas578/tcp ipdd ipdd579/tcp decbsrv decbsrv581/tcp bdp Bundle Discovery Protocol588/tcp cal CAL589/tcp eyelink EyeLink590/tcp tns-cml TNS CML593/tcp http-rpc-epmap HTTP RPC Ep Map594/tcp tpip TPIP596/tcp smsd SMSD599/tcp acp Aeolon Core Protocol600/tcp ipcserver Sun IPC server606/tcp urm Cray Unified Resource Manager607/tcp nqs nqs608/tcp sift-uft Sender-Initiated/Unsolicited File Transfer609/tcp npmp-trap npmp-trap610/tcp npmp-local npmp-local611/tcp npmp-gui npmp-gui613/tcp hmmp-op HMMP Operation620/tcp sco-websrvrmgr SCO WebServer Manager621/tcp escp-ip ESCP625/tcp dec_dlm DEC DLM626/tcp asia ASIA628/tcp qmqp QMQP630/tcp rda RDA631/tcp ipp IPP (Internet Printing Protocol)632/tcp bmpp bmpp634/tcp ginad ginad635/tcp rlzdbase RLZ DBase636/tcp ldaps ldap protocol over TLS/SSL (was sldap)637/tcp lanserver lanserver639/tcp msdp MSDP666/tcp doom doom Id Software667/tcp disclose campaign contribution disclosures - SDR Technologies 668/tcp mecomm MeComm669/tcp meregister MeRegister670/tcp vacdsm-sws VACDSM-SWS671/tcp vacdsm-app VACDSM-APP672/tcp vpps-qua VPPS-QUA673/tcp cimplex CIMPLEX674/tcp acap ACAP675/tcp dctp DCTP704/tcp elcsd errlog copy/server daemon705/tcp agentx AgentX709/tcp entrust-kmsh Entrust Key Management Service Handler710/tcp entrust-ash Entrust Administration Service Handler729/tcp netviewdm1 IBM NetView DM/6000 Server/Client730/tcp netviewdm2 IBM NetView DM/6000 send/tcp731/tcp netviewdm3 IBM NetView DM/6000 receive/tcp741/tcp netgw netGW742/tcp netrcs Network based Rev. Cont. Sys.744/tcp flexlm Flexible License Manager747/tcp fujitsu-dev Fujitsu Device Control748/tcp ris-cm Russell Info Sci Calendar Manager749/tcp kerberos-adm kerberos administration750/tcp rfile751/tcp pump752/tcp qrh753/tcp rrh754/tcp tell send758/tcp nlogin759/tcp con760/tcp ns761/tcp rxe762/tcp quotad763/tcp cycleserv764/tcp omserv765/tcp webster769/tcp vid770/tcp cadlock771/tcp rtip772/tcp cycleserv2773/tcp submit774/tcp rpasswd776/tcp wpages780/tcp wpgs786/tcp concert Concert787/tcp qsc QSC801/tcp device873/tcp rsync rsync886/tcp iclcnet-locate ICL coNETion locate server887/tcp iclcnet_svinfo ICL coNETion server info888/tcp accessbuilder AccessBuilder900/tcp omginitialrefs OMG Initial Refs911/tcp xact-backup xact-backup990/tcp ftps ftp protocol, control, over TLS/SSL991/tcp nas Netnews Administration System992/tcp telnets telnet protocol over TLS/SSL993/tcp imaps imap4 protocol over TLS/SSL994/tcp ircs irc protocol over TLS/SSL995/tcp pop3s pop3 protocol over TLS/SSL (was spop3) 996/tcp vsinet vsinet997/tcp maitrd998/tcp busboy999/tcp garcon1000/tcp cadlock1010/tcp surf surf1023/tcp Reserved Reserved1030/tcp iad1 BBN IAD1031/tcp iad2 BBN IAD1032/tcp iad3 BBN IAD1047/tcp neod1 Sun's NEO Object Request Broker 1048/tcp neod2 Sun's NEO Object Request Broker 1058/tcp nim nim1059/tcp nimreg nimreg1067/tcp instl_boots Installation Bootstrap Proto. Serv. 1068/tcp instl_bootc Installation Bootstrap Proto. Cli. 1080/tcp socks Socks1083/tcp ansoft-lm-1 Anasoft License Manager1084/tcp ansoft-lm-2 Anasoft License Manager1123/tcp murray Murray1155/tcp nfa Network File Access1212/tcp lupa lupa1222/tcp nerv SNI R&D network1239/tcp nmsd NMSD1248/tcp hermes1313/tcp bmc_patroldb BMC_PATROLDB1314/tcp pdps Photoscript Distributed Printing System 1321/tcp pip PIP1345/tcp vpjp VPJP1346/tcp alta-ana-lm Alta Analytics License Manager 1347/tcp bbn-mmc multi media conferencing1348/tcp bbn-mmx multi media conferencing1349/tcp sbook Registration Network Protocol1350/tcp editbench Registration Network Protocol 1352/tcp lotusnote Lotus Note1353/tcp relief Relief Consulting1354/tcp rightbrain RightBrain Software1355/tcp intuitive-edge Intuitive Edge1356/tcp cuillamartin CuillaMartin Company1357/tcp pegboard Electronic PegBoard1358/tcp connlcli CONNLCLI1359/tcp ftsrv FTSRV1360/tcp mimer MIMER1361/tcp linx LinX1362/tcp timeflies TimeFlies1363/tcp ndm-requester Network DataMover Requester 1364/tcp ndm-server Network DataMover Server 1365/tcp adapt-sna Network Software Associates1366/tcp netware-csp Novell NetWare Comm Service Platform 1367/tcp dcs DCS1368/tcp screencast ScreenCast1369/tcp gv-us GlobalView to Unix Shell1370/tcp us-gv Unix Shell to GlobalView1371/tcp fc-cli Fujitsu Config Protocol1372/tcp fc-ser Fujitsu Config Protocol1373/tcp chromagrafx Chromagrafx1374/tcp molly EPI Software Systems1375/tcp bytex Bytex1376/tcp ibm-pps IBM Person to Person Software1377/tcp cichlid Cichlid License Manager1378/tcp elan Elan License Manager1379/tcp dbreporter Integrity Solutions1380/tcp telesis-licman Telesis Network License Manager 1381/tcp apple-licman Apple Network License Manager 1382/tcp udt_os1383/tcp gwha GW Hannaway Network License Manager 1384/tcp os-licman Objective Solutions License Manager 1385/tcp atex_elmd Atex Publishing License Manager1386/tcp checksum CheckSum License Manager1387/tcp cadsi-lm Computer Aided Design Software Inc LM 1388/tcp objective-dbc Objective Solutions DataBase Cache 1389/tcp iclpv-dm document．nbsp;Manager1390/tcp iclpv-sc Storage Controller1391/tcp iclpv-sas Storage Access Server1392/tcp iclpv-pm Print Manager1393/tcp iclpv-nls Network Log Server1394/tcp iclpv-nlc Network Log Client1395/tcp iclpv-wsm PC Workstation Manager software1396/tcp dvl-activemail DVL Active Mail1399/tcp cadkey-licman Cadkey License Manager1400/tcp cadkey-tablet Cadkey T ablet Daemon1402/tcp prm-sm-np Prospero Resource Manager1403/tcp prm-nm-np Prospero Resource Manager1404/tcp igi-lm Infinite Graphics License Manager1405/tcp ibm-res IBM Remote Execution Starter1406/tcp netlabs-lm NetLabs License Manager1407/tcp dbsa-lm DBSA License Manager1408/tcp sophia-lm Sophia License Manager1409/tcp here-lm Here License Manager1410/tcp hiq HiQ License Manager1411/tcp af AudioFile1412/tcp innosys InnoSys1413/tcp innosys-acl Innosys-ACL1414/tcp ibm-mqseries IBM MQSeries1415/tcp dbstar DBStar1416/tcp novell-lu6.2 Novell LU6.21417/tcp timbuktu-srv1 Timbuktu Service 1 Port1418/tcp timbuktu-srv2 Timbuktu Service 2 Port1419/tcp timbuktu-srv3 Timbuktu Service 3 Port1420/tcp timbuktu-srv4 Timbuktu Service 4 Port1421/tcp gandalf-lm Gandalf License Manager1422/tcp autodesk-lm Autodesk License Manager1423/tcp essbase Essbase Arbor Software1424/tcp hybrid Hybrid Encryption Protocol1425/tcp zion-lm Zion Software License Manager1426/tcp sais Satellite-data Acquisition System 11427/tcp mloadd mloadd monitoring tool1428/tcp informatik-lm Informatik License Manager1429/tcp nms Hypercom NMS1430/tcp tpdu Hypercom TPDU1431/tcp rgtp Reverse Gossip Transport1432/tcp blueberry-lm Blueberry Software License Manager 1433/tcp ms-sql-s Microsoft-SQL-Server1434/tcp ms-sql-m Microsoft-SQL-Monitor1435/tcp ibm-cics IBM CICS1436/tcp saism Satellite-data Acquisition System 21437/tcp tabula Tabula1438/tcp eicon-server Eicon Security Agent/Server1439/tcp eicon-x25 Eicon X25/SNA Gateway1440/tcp eicon-slp Eicon Service Location Protocol1441/tcp cadis-1 Cadis License Management1442/tcp cadis-2 Cadis License Management1443/tcp ies-lm Integrated Engineering Software1444/tcp marcam-lm Marcam License Management1445/tcp proxima-lm Proxima License Manager1446/tcp ora-lm Optical Research Associates License Manager 1447/tcp apri-lm Applied Parallel Research LM1448/tcp oc-lm OpenConnect License Manager1449/tcp peport PEport1450/tcp dwf T andem Distributed Workbench Facility1451/tcp infoman IBM Information Management1452/tcp gtegsc-lm GTE Government Systems License Man 1453/tcp genie-lm Genie License Manager1454/tcp interhdl_elmd interHDL License Manager1455/tcp esl-lm ESL License Manager1456/tcp dca DCA1457/tcp valisys-lm Valisys License Manager1458/tcp nrcabq-lm Nichols Research Corp.1459/tcp proshare1 Proshare Notebook Application 1460/tcp proshare2 Proshare Notebook Application 1461/tcp ibm_wrless_lan IBM Wireless LAN1462/tcp world-lm World License Manager1463/tcp nucleus Nucleus1464/tcp msl_lmd MSL License Manager1465/tcp pipes Pipes Platform1466/tcp oceansoft-lm Ocean Software License Manager 1467/tcp csdmbase CSDMBASE1468/tcp csdm CSDM1469/tcp aal-lm Active Analysis Limited License Manager 1470/tcp uaiact Universal Analytics1471/tcp csdmbase csdmbase1472/tcp csdm csdm1473/tcp openmath OpenMath1474/tcp telefinder Telefinder1475/tcp taligent-lm T aligent License Manager1476/tcp clvm-cfg clvm-cfg1477/tcp ms-sna-server ms-sna-server1478/tcp ms-sna-base ms-sna-base1479/tcp dberegister dberegister1480/tcp pacerforum PacerForum1481/tcp airs AIRS1482/tcp miteksys-lm Miteksys License Manager1483/tcp afs AFS License Manager1484/tcp confluent Confluent License Manager1485/tcp lansource LANSource1486/tcp nms_topo_serv nms_topo_serv1487/tcp localinfosrvr LocalInfoSrvr1488/tcp docstor DocStor1489/tcp dmdocbroker dmdocbroker1490/tcp insitu-conf insitu-conf1491/tcp anynetgateway anynetgateway1492/tcp stone-design-1 stone-design-11493/tcp netmap_lm netmap_lm1494/tcp ica ica1495/tcp cvc cvc1496/tcp liberty-lm liberty-lm1497/tcp rfx-lm rfx-lm1498/tcp sybase-sqlany Sybase SQL Any1499/tcp fhc Federico Heinz Consultora1500/tcp vlsi-lm VLSI License Manager1501/tcp saiscm Satellite-data Acquisition System 31502/tcp shivadiscovery Shiva1503/tcp imtc-mcs Databeam1504/tcp evb-elm EVB Software Engineering License Manager 1505/tcp funkproxy Funk Software, Inc.1506/tcp utcd Universal Time daemon (utcd)1507/tcp symplex symplex1508/tcp diagmond diagmond1509/tcp robcad-lm Robcad, Ltd. License Manager1510/tcp mvx-lm Midland Valley Exploration Ltd. Lic. Man. 1511/tcp 3l-l1 3l-l11512/tcp wins Microsoft's Windows Internet Name Service 1513/tcp fujitsu-dtc Fujitsu Systems Business of America, Inc 1514/tcp fujitsu-dtcns Fujitsu Systems Business of America, Inc 1515/tcp ifor-protocol ifor-protocol1516/tcp vpad Virtual Places Audio data1517/tcp vpac Virtual Places Audio control1518/tcp vpvd Virtual Places Video data1519/tcp vpvc Virtual Places Video control1520/tcp atm-zip-office atm zip office1521/tcp ncube-lm nCube License Manager1522/tcp ricardo-lm Ricardo North America License Manager 1523/tcp cichild-lm cichild1525/tcp orasrv oracle1525/tcp prospero-np Prospero Directory Service non-priv 1526/tcp pdap-np Prospero Data Access Prot non-priv1527/tcp tlisrv oracle1528/tcp mciautoreg micautoreg1529/tcp coauthor oracle1530/tcp rap-service rap-service1531/tcp rap-listen rap-listen1532/tcp miroconnect miroconnect1533/tcp virtual-places Virtual Places Software1534/tcp micromuse-lm micromuse-lm1535/tcp ampr-info ampr-info1536/tcp ampr-inter ampr-inter1537/tcp sdsc-lm isi-lm1538/tcp 3ds-lm 3ds-lm1539/tcp intellistor-lm Intellistor License Manager1540/tcp rds rds1541/tcp rds2 rds21542/tcp gridgen-elmd gridgen-elmd1543/tcp simba-cs simba-cs1544/tcp aspeclmd aspeclmd。

各种常⽤的默认端⼝号总结各种常⽤的默认端⼝号总结端⼝号的范围是从1～65535。

其中1～1024是被RFC 3232规定好了的，被称作“众所周知的端⼝”(Well Known Ports)；从1025～65535的端⼝被称为动态端⼝（Dynamic Ports），可⽤来建⽴与其它主机的会话，也可由⽤户⾃定义⽤途。

详细版常见端⼝0|⽆效端⼝,通常⽤于分析操作系统1|传输控制协议端⼝服务多路开关选择器2|管理实⽤程序3|压缩进程5|远程作业登录7|回显9|丢弃11|在线⽤户13|时间17|每⽇引⽤18|消息发送协议19|字符发⽣器20|FTP⽂件传输协议(默认数据⼝)21|FTP⽂件传输协议(控制)22|SSH远程登录协议23|telnet(终端仿真协议),⽊马Tiny Telnet Server开放此端⼝24|预留给个⼈⽤邮件系统25|SMTP服务器所开放的端⼝，⽤于发送邮件27|NSW ⽤户系统 FE29|MSG ICP31|MSG验证,⽊马Master Paradise、HackersParadise开放此端⼝33|显⽰⽀持协议35|预留给个⼈打印机服务37|时间38|路由访问协议39|资源定位协议41|图形42|主机名服务43|who is服务44|MPM(消息处理模块)标志协议45|消息处理模块46|消息处理模块(默认发送⼝)47|NI FTP48|数码⾳频后台服务49|TACACS登录主机协议50|远程邮件检查协议51|IMP(接⼝信息处理机)逻辑地址维护52|施乐⽹络服务系统时间协议53|dns域名服务器54|施乐⽹络服务系统票据交换55|ISI图形语⾔56|施乐⽹络服务系统验证57|预留个⼈⽤终端访问58|施乐⽹络服务系统邮件59|预留个⼈⽂件服务60|未定义61|NI邮件62|异步通讯适配器服务63|whois++64|通讯接⼝65|TACACS数据库服务66|Oracle SQL*NET67|引导程序协议服务端68|引导程序协议客户端69|⼩型⽂件传输协议70|信息检索协议71|远程作业服务72|远程作业服务73|远程作业服务74|远程作业服务75|预留给个⼈拨出服务76|分布式外部对象存储77|预留给个⼈远程作业输⼊服务78|修正TCP79|查询远程主机在线⽤户等信息80|http,⽤于⽹页浏览,⽊马Executor开放此端⼝81|HOST2名称服务82|传输实⽤程序83|模块化智能终端ML设备84|公⽤追踪设备85|模块化智能终端ML设备86|Micro Focus Cobol编程语⾔87|预留给个⼈终端连接88|Kerberros安全认证系统89|SU/MIT telnet(终端仿真⽹关)90|DNSIX 安全属性标记图91|MIT Dover假脱机92|⽹络打印协议93|设备控制协议94|Tivoli对象调度96|DIXIE协议规范97|快速远程虚拟⽂件协议98|TAC新闻协议99|后门程序ncx99开放此端⼝100|未知⽤途101|NIC 主机名称服务102|消息传输代理103|Genesis 点对点传输⽹络105|信箱名称服务106|3COM-TSMUX开放端⼝107|远程Telnet服务108|SNA ⽹关访问服务109|POP2服务器开放此端⼝,⽤于接收邮件110|POP3服务器开放此端⼝,⽤于接收邮件111|SUN公司的RPC服务所有端⼝112|McIDAS 数据传输协议113|认证服务，⽤于鉴别TCP连接的⽤户114|⾳频新闻多点服务115|简单⽂件传输服务116|ANSA REX 通知117|UUCP 路径服务118|SQL 服务119|NEWS新闻组传输协议，承载USENET通信121|⽊马BO jammerkillahV开放端⼝122|SMAKY⽹络123|⽹络时间协议，蠕⾍病毒会利⽤，⼀般关闭128|GSS X许可认证129|密码⽣成器协议130|Cisco软件开放端⼝131|Cisco软件开放端⼝132|Cisco软件开放端⼝133|统计服务134|INGRES-⽹络服务135|DCOM服务，冲击波病毒利⽤，不能关闭136|命名系统137|NETBIOS协议应⽤，为共享开放138|NETBIOS协议应⽤，为共享开放139|NETBIOS协议应⽤，为共享开放140|EMFIS数据服务141|EMFIS控制服务143|Interim邮件访问协议144|UMA软件开放端⼝145|UAAC协议149|AED 512仿真服务150|SQL(结构化查询语⾔)-⽹络152|后台⽂件传输协议156|SQL(结构化查询语⾔)服务158|PC邮件服务器159|NSS-路由160|SGMP-陷阱161|简单⽹络管理协议162|SNMP陷阱163|CMIP/TCP 管理164|CMIP/TCP 代理166|Sirius系统169|发送170|⽹络附⾔177|x显⽰管理控制协议，⼊侵者通过它访问X-windows操作台178|NextStep Window 服务179|边界⽹关协议180|图表181|统⼀184|OC服务器185|远程-KIS186|KIS 协议187|应⽤通信接⼝189|队列⽂件传输190|⽹关进⼊控制协议191|Prospero ⽬录服务192|OSU ⽹络监视系统193|Spider 远程控制协议194|多线交谈协议197|⽬录地址服务198|⽬录地址服务监视器200|IBM系统资源控制器201|AppleTalk(Mac机所⽤的⽹络协议)路由保证202|AppleTalk(Mac机所⽤的⽹络协议)Name Binding203|AppleTalk(Mac机所⽤的⽹络协议)未⽤端⼝204|AppleTalk(Mac机所⽤的⽹络协议)回显205|AppleTalk(Mac机所⽤的⽹络协议)未⽤端⼝206|AppleTalk(Mac机所⽤的⽹络协议)区信息207|AppleTalk(Mac机所⽤的⽹络协议)未⽤端⼝208|AppleTalk(Mac机所⽤的⽹络协议)未⽤端⼝209|快速邮件传输协议210|ANSI(美国国家标准协会)Z39.50211|Texas Instruments 914C/G终端213|IPX(以太⽹所⽤的协议)218|Netix消息记录协议219|Unisys ARPs220|交互邮件访问协议 v3223|证书分发中⼼224|masq拨号器241|预留端⼝ (224-241)245|链接246|显⽰系统协议257|安全电⼦交易系统258|Yak Winsock 个⼈聊天259|有效短程遥控260|开放端⼝261|IIOP 基于TLS/SSL的命名服务266|SCSI(⼩型计算机系统接⼝)on ST267|Tobit David服务层268|Tobit David复制281|个⼈连结282|Cable端⼝A/X286|FXP通信308|Novastor备份313|Magenta逻辑318|PKIX时间标记333|Texar安全端⼝344|Prospero数据存取协议345|Perf分析⼯作台346|Zebra服务器347|Fatmen服务器348|Cabletron管理协议358|Shrink可上⽹家电协议359|⽹络安全风险管理协议362|SRS发送363|RSVP隧道372|列表处理373|Legend公司374|Legend公司376|AmigaEnvoy⽹络查询协议377|NEC公司378|NEC公司379|TIA/EIA/IS-99调制解调器客户端380|TIA/EIA/IS-99调制解调器服务器381|hp(惠普)性能数据收集器382|hp(惠普)性能数据控制节点383|hp(惠普)性能数据警报管理384|远程⽹络服务器系统385|IBM应⽤程序386|ASA信息路由器定义⽂件.387|Appletalk更新路由.389|轻型⽬录访问协议395|⽹络监视控制协议396|Novell(美国Novell公司)Netware(Novell公司出的⽹络操作系统)over IP400|⼯作站解决⽅案401|持续电源402|Genie协议406|交互式邮件⽀持协议408|Prospero资源管理程序409|Prospero资源节点管理.410|DEC(数据设备公司)远程调试协议411|远程MT协议412|陷阱协定端⼝413|存储管理服务协议414|信息查询415|B⽹络423|IBM操作计划和控制开端424|IBM操作计划和控制追踪425|智能计算机辅助设计427|服务起位置434|移动ip代理435|移动ip管理443|基于TLS/SSL的⽹页浏览端⼝，能提供加密和通过安全端⼝传输的另⼀种HTTP 444|简单⽹络内存分页协议445|Microsoft-DS，为共享开放，震荡波病毒利⽤，⼀般应关闭446|DDM-远程关系数据库访问447|DDM-分布式⽂件管理448|DDM-使⽤安全访问远程数据库456|⽊马HACKERS PARADISE开放此端⼝458|apple quick time软件开放端⼝459|ampr-rcmd命令464|k密码服务469|⼴播控制协议470|scx-代理472|ljk-登陆481|Ph服务487|简单异步⽂件传输489|nest-协议491|go-登陆499|ISO ILL协议500|Internet密钥交换，Lsass开放端⼝，不能关闭509|陷阱510|FirstClass协议512|远程进程执⾏513|远程登陆514|cmd命令515|spooler516|可视化数据518|交谈519|unix时间520|扩展⽂件名称服务器525|时间服务526|新⽇期529|在线聊天系统服务530|远程过程调⽤531|聊天532|读新闻533|紧急⼴播端⼝534|MegaMedia管理端537|⽹络流媒体协议542|商业543|Kerberos(软件)v4/v5544|krcmd命令546|DHCPv6 客户端547|DHCPv6 服务器552|设备共享554|Real Time Stream控制协议555|⽊马PhAse1.0、Stealth Spy、IniKiller开放此端⼝556|远距离⽂件服务器563|基于TLS/SSL的⽹络新闻传输协议564|plan 9⽂件服务565|whoami查询566|streettalk567|banyan-rpc(远程过程调⽤)568|DPA成员资格569|MSN成员资格570|demon(调试监督程序)571|udemon(调试监督程序)572|声纳573|banyan-贵宾574|FTP软件代理系统581|Bundle Discovery 协议582|SCC安全583|Philips视频会议584|密钥服务器585|IMAP4+SSL (Use 993 instead)586|密码更改587|申请589|Eye连结595|CAB协议597|PTC名称服务598|SCO⽹络服务器管理3599|Aeolon Core协议600|Sun IPC(进程间通讯)服务器601|可靠系统登陆服务604|通道606|Cray统⼀资源管理608|发送⼈-传递/提供⽂件传输器609|npmp-陷阱610|npmp-本地611|npmp-gui( 图形⽤户界⾯)612|HMMP指引613|HMMP操作614|SSL(加密套接字协议层)shell(壳)615|Internet配置管理616|SCO(Unix系统)系统管理服务器617|SCO桌⾯管理服务器619|Compaq(康柏公司)EVM620|SCO服务器管理623|ASF远程管理控制协议624|Crypto管理631|IPP (Internet打印协议)633|服务更新(Sterling软件)637|局域⽹服务器641|repcmd命令647|DHCP(动态主机配置协议)Failover648|注册登记协议(RRP)649|Cadview-3d软件协议666|⽊马Attack FTP、Satanz Backdoor开放此端⼝808|ccproxy http/gopher/ftp (over http)协议1001|⽊马Silencer，WebEx开放端⼝1011|⽊马Doly开放端⼝1024|动态端⼝的开始,⽊马yai开放端⼝1025|inetinfo.exe(互联⽹信息服务)⽊马netspy开放端⼝1026|inetinfo.exe(互联⽹信息服务)1027|应⽤层⽹关服务1030|应⽤层⽹关服务1031|BBN IAD1033|本地⽹络信息端⼝1034|同步通知1036|安全部分传输协议1070|⽊马Psyber Stream，Streaming Audio开放端⼝1071|⽹络服务开放端⼝1074|⽹络服务开放端⼝1080|Socks这⼀协议以通道⽅式穿过防⽕墙，允许防⽕墙后⾯的⼈通过⼀个IP地址。