3Com 6200 Hardware And Software Users Manual

Also see for 3CR13500: Software install guide

Contents

3Com 6200 Hardware And Software Users Manual Manual pdf 38 page image

4-6 3COM Security Switch 6200 Hardware and Software Users GuideConfiguring the Security Switch 6200 SystemConfiguringthe NetworkTime Protocol(NTP)The Network Time Protocol (NTP) is used to synchronize the time of acomputer client or server to another server or reference time source, such as aradio or satellite receiver or modem. It provides accuracies typically within amillisecond on LANs and up to a few tens of milliseconds on WANs relative toCoordinated Universal Time (UTC) through a Global Positioning Service(GPS) receiver, for example. Typical NTP configurations utilize multipleredundant servers and diverse network paths in order to achieve highaccuracy and reliability.To configure NTP:1. Select Option 3 from the main menu.NTP Servers===========xxx.xxx.xx.xModify the NTP Servers or eXit>[eXit]:2. Enter the desired option and add or delete an NTP server or enterX to return to the main menu.ConfiguringDomain NameResolutionDomain name resolution allows you translate and search domain names. TheDomain Name System (DNS) is a global network of servers that translate hostnames like www.mycompany.com into numerical IP (Internet Protocol)addresses, for example 24.62.13.19.To configure domain name resolution:1. Select Option 4 from the main menu.Domain Name Resolution Configuration====================================1) DNS Servers2) DNS Search DomainsX) ExitEnter choice <1 - 2, X>[X]: 12. Enter the desired option. For example:Enter choice <1 - 2, X>[X]: 1DNS Servers===========Modify the DNS Server List [eXit]: aDNS Server's IP Address [0.0.0.0]: 10.1.1.50DNS Servers===========10.1.1.50Modify the DNS Server List Delete or eXit>[eXit]:Domain Name Resolution Configuration====================================1) DNS Servers