NTP authentication

From: Hung, Sing-Yu (Sing-Yu.Hung@xxxxxxxx)
Date: Fri Aug 02 2002 - 05:25:56 GMT-3


   
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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