Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide Chapter 6 NTP Configuration Commands
3Com Corporation
6-12
[3com] ntp-service refclock-master 3
6.1.14 ntp-service reliable authentication-keyid
Syntax
ntp-service reliable authentication-keyid number
undo ntp-service reliable authentication-keyid number
View
System view
Parameter
number: Key ID in the range 1 to 4294967295.
Description
Use the ntp-service reliable authentication-keyid command to specify a reliable key.
Use the undo ntp-service reliable authentication-keyid command to cancel the
setting.
By default, no reliable authentication key is set.
When ID authentication is enabled, you can use this command to specify that one or
more keys are reliable. The client only synchronizes to the server that provides the
reliable key.
Example
# Enable ID authentication of NTP. Adopt MD5 encryption, and specify the key ID to 37
and the key to BetterKey. Specify the key to be reliable.
[3com] ntp-service authentication enable
[3com] ntp-service authentication-keyid 37 authentication-mode md5 BetterKey
[3com] ntp-service reliable authentication-keyid 37
6.1.15 ntp-service source-interface
Syntax
ntp-service source-interface interface-type interface-number
undo ntp-service source-interface
View
System view
Parameter
interface-type: Specifies an interface along with interface-number.