From: Colin Barber (Colin.Barber@xxxxxxxxxxxxxx)
Date: Fri Aug 02 2002 - 05:50:52 GMT-3
Your client is not sending any authentication. Your need to specify the key
within the ntp server command
e.g. ntp server 10.34.1.2 key 99
Colin
-----Original Message-----
From: Hung, Sing-Yu [mailto:Sing-Yu.Hung@pccw.com]
Sent: 02 August 2002 09:26
To: ccielab@groupstudy.com
Subject: NTP authentication
Dear,
I have R3 and R4, and R4 be the ntp master, R3 be the client. NTP
authenticastion is on but with difference key and password, however they can
be synchronized. Could anyone tell me why?
R3:
ntp authentication-key 99 md5 0317520501 7
ntp authenticate
ntp trusted-key 99
ntp clock-period 17179870
ntp server 10.34.1.2
r3#sho ntp s
Clock is synchronized, stratum 9, reference is 10.34.1.2
nominal freq is 250.0000 Hz, actual freq is 249.9999 Hz, precision is 2**19
reference time is AF3F7FCC.37CE4EB5 (19:04:44.217 UTC Wed Mar 3 1993)
clock offset is 2.3079 msec, root delay is 29.30 msec
root dispersion is 3.49 msec, peer dispersion is 1.16 msec
R4:
ntp authentication-key 1010 md5 0307580516 7
ntp authenticate
ntp trusted-key 1010
ntp master
Bradford Hung
> Pacific Century CyberWorks
> Tel: 288 33125
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