3Com Switch 7750 Series
Command Reference Guide – NTP
Chapter 1 NTP Configuration Commands
1-13
Parameter
number
: Specifies the key number, ranging from 1 to 4,294,967,295.
Description
Use the
ntp-service reliable authentication-keyid
command to configure the key as
a reliable key.
Use the
undo ntp-service reliable authentication-keyid
command to cancel the
current setting.
By default, no reliable key is configured.
When you enable the authentication, you can use this command to configure one or
more than one reliable keys. In this case, a client only synchronizes to the server that
provides reliable keys.
Example
# Enable NTP authentication, adopt MD5 encryption, and designate Key 37 BetterKey
and configure it as a reliable key.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] ntp-service authentication enable
[3Com] ntp-service authentication-keyid 37 authentication-mode md5 BetterKey
[3Com] ntp-service reliable authentication-keyid 37
1.1.16 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. This parameter is used to specify an interface
together with the
interface-number
parameter.
interface-number
: Specifies an interface number. This parameter is used to specify an
interface with the
interface-type
parameter.
Description
Use the
ntp-service source-interface
command to designate an interface to transmit
NTP messages.