H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 28)

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Configuring NTP authentication for client
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable NTP authentication. ntp-service authentication enable
By default, NTP authentication is
disabled.
3. Configure an NTP
authentication key.
ntp-service authentication-keyid
keyid authentication-mode md5
[ cipher | simple ] value
By default, no NTP authentication
key is configured.
Configure the same authentication
key on the client and server.
4. Configure the key as a trusted
key. ntp-service reliable
authentication-keyid keyid By default, the authentication key is
not configured as a trusted key.
5. Associate the specified key
with an NTP server.
ntp-service unicast-server
{ ip-address | server-name }
authentication-keyid keyid
You can associate a non-existing
key with an NTP server. To make
NTP authentication effective, you
must configure the key as an
authentication key and specify it as
a trusted key after associating the
key with the NTP server.
Configuring NTP authentication for a server
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable NTP authentication. ntp-service authentication enable
By default, NTP authentication is
disabled.
3. Configure an NTP
authentication key.
ntp-service authentication-keyid
keyid authentication-mode md5
[ cipher | simple ] value
By default, no NTP authentication
key is configured.
Configure the same authentication
key on the client and server.
4. Configure the key as a trusted
key. ntp-service reliable
authentication-keyid keyid By default, the authentication key is
not configured as a trusted key.
Configuring NTP authentication in symmetric peers mode
Follow these instructions to configure NTP authentication in symmetric peers mode:
• An active symmetric peer can synchronize to the passive symmetric peer only when you configure
all the required tasks on both the active symmetric peer and passive symmetric peer.
• When the active peer has a greater stratum level than the passive peer:
{
On the active peer, if NTP authentication is not enabled or no key is specified to associate with
the passive peer, the active peer synchronizes to the passive peer as long as NTP authentication
is disabled on the passive peer.