3Com 7700 Configuration Manual page 320

40 C 11: S M
HAPTER YSTEM ANAGEMENT
Configuring NTP ID Authentication
Enable NTP authentication, set the MD5 authentication key, and specify the
reliable key. A client will synchronize itself by a server only if the serve can provide
a reliable key.
Perform the following configurations in system view.
Table 71 Configure NTP Authentication
Operation
Enable NTP authentication
Disable NTP authentication
Setting the NTP Authentication Key
This configuration task sets the NTP authentication key.
Perform the following configurations in system view.
Table 72 Configure NTP Authentication Key
Operation
Configure NTP authentication key
Remove NTP authentication key
Key number number ranges from 1 to 4294967295; the key value contains 1 to
32 ASCII characters.
Setting the Specified Key to Be Reliable
This configuration task is to set the specified key as reliable.
Perform the following configurations in system view.
Set the Specified Key as Reliable
Table 73
Operation
Set the specified key as reliable
Cancel the specified reliable key.
Key number key-number ranges from 1 to 4294967295
Designating an Interface to Transmit the NTP Message
If the local equipment is configured to transmit all NTP messages, these packets
have the same source IP address, which is taken from the IP address of the
designated interface.
Command
ntp-service authentication enable
undo ntp-service authentication enable
Command
ntp-service authentication-keyid number
authentication-mode md5 value
undo ntp-service authentication-keyid
number
Command
ntp-service reliable authentication-keyid
key-number
undo ntp-service reliable
authentication-keyid key-number