3Com 5500G-EI Command Reference Guide - Page 505

NTP Configuration Commands 505 Parameters None Description Use the ntp-service authentication enable command to enable the NTP-service authentication function, if no IP address is specified, the switch automatically selects 224.0.1.1 as the multicast IP address. Use the undo ntp-service authentication enable command to disable this function, if no IP address is specified, the switch will disable the configuration of the multicast IP address 224.0.1.1. By default, the authentication is disabled. Example Enable NTP authentication function. system-view System View: return to User View with Ctrl+Z. [SW5500]ntp-service authentication enable ntp-service authentication-keyid Syntax ntp-service authentication-keyid number authentication-mode md5 value undo ntp-service authentication-keyid number View System view Parameter number: Specify the key number and range from 1 to 4294967295. value: Specify the value of the key with 1 to 32 ASCII characters. Description Use the ntp-service authentication-keyid command to set NTP authentication key. Use the undo ntp-service authentication-keyid command to cancel the NTP authentication key. By default, there is no authentication key. Only MD5 authentication is supported for the NTP authentication key settings. Example Set MD5 authentication key 10 as BetterKey. system-view System View: return to User View with Ctrl+Z. SW5500]ntp-service authentication-keyid 10 authentication-mode md5 BetterKey ntp-service Syntax broadcast-client ntp-service broadcast-client