78When the NTP authentication key is configured, configure the key as a trusted key by using thentp-service reliable authentication-keyid command.The system supports only the MD5 algorithm for key authentication.A maximum of 1024 keys can be set for each device.If an NTP authentication key is specified as a trusted key, the key automatically changes to untrusted afteryou delete the key. In this case, you do not need to execute the undo ntp-service reliableauthentication-keyid command.For security purposes, all keys, including keys configured in plain text, are saved in cipher text to theconfiguration file.Examples# Set an MD5 authentication key, with the key ID of 10 and key value of BetterKey. system-view[Sysname] ntp-service authentication enable[Sysname] ntp-service authentication-keyid 10 authentication-mode md5 BetterKeyRelated commandsntp-service reliable authentication-keyidntp-service broadcast-clientUse ntp-service broadcast-client to configure the device to operate in NTP broadcast client mode anduse the current interface to receive NTP broadcast packets.Use undo ntp-service broadcast-client to remove the configuration.Syntaxntp-service broadcast-clientundo ntp-service broadcast-clientDefaultThe device does not operate in any NTP operation mode.ViewsInterface viewDefault command level3: Manage levelExamples# Configure the device to operate in broadcast client mode and receive NTP broadcast messages onGigabitEthernet 2/0/1. system-view[Sysname] interface gigabitethernet 2/0/1[Sysname-GigabitEthernet2/0/1] ntp-service broadcast-clientntp-service broadcast-serverUse ntp-service broadcast-server to configure the device to operate in NTP broadcast server mode anduse the current interface to send NTP broadcast packets.
