Nortel 3050 Troubleshooting Manual

Also see for 3050: Command reference guide Installation guide Supplementary guide Implementation guide

Contents

Nortel 3050 Troubleshooting Manual Manual pdf 66 page image

66 GlossarySPort (Source Port) The source destination port, linking theincoming data to the correct service.For example, port 80 for HTTP, port443 for HTTPS, port 995 for POP3S.SSH (Secure Shell) A program used to log intoanother computer over a network,execute commands in a remotemachine, and move files from onemachine to another. SSH providesstrong authentication and securecommunications over insecurechannels.SSL (Secure Sockets Layer)ProtocolThe SSL protocol is the leadingsecurity protocol on the Internet.It runs above the TCP/IP protocoland following higher-level protocolssuch as HTTP or IMAP. SSL usesTCP/IP on behalf of the higher-levelprotocols and, in the process, allowsan SSL-enabled server to authenticateitself to an SSL-enabled client.SSL VPN client Windows application with SOCKSsupport. When installed on a user’scomputer, transparent access (notthrough the Portal page) to intranetapplications is enabled.TLS (Transport Layer Security) The TLS protocol providescommunications privacy overthe Internet. The protocol allowsclient/server applications tocommunicate in a way that is designedto prevent eavesdropping, tampering,or message forgery.Traceroute A utility used to identify the routeused for station-to-station connectivityacross the network.Trap If a trap is defined in the MIB, a trapmessage is sent from the SNMPagent to the SNMP manager whenthe trap is triggered. A trap can forexample define a hardware failure in amonitored device.TunnelGuard TunnelGuard is an application thatchecks that the required components(executables, DLLs, configuration files,etc.) are installed and active on theremote user’s machine.Nortel VPN GatewayTroubleshooting GuideNN46120-700 01.01 Standard12 October 2007Copyright © 2007 Nortel Networks.