From: GAURAV MADAN (gauravmadan1177@gmail.com)
Date: Sun Nov 16 2008 - 12:01:26 ARST
Hi Group
Somehow I am not getting my NTP synchronised . Can someone help me in this .
I have R1
/ \
/ \
R2 R3
R1 as Hub and R2 and R3 as spokes
R1 as NTP server and R2 and R3 as clients.
R1
******
R1(config)#do sh run | inc ntp
ntp authentication-key 1 md5 02250D480809 7
ntp master 2
R2
**********
R2(config)#do sh run | inc ntp
ntp authentication-key 1 md5 0802455D0A16 7
ntp authenticate
ntp trusted-key 1
ntp server 131.1.12.1 key 1 prefer
R2(config)#
R3
**********
R3(config)#do sh run | inc ntp
ntp authentication-key 1 md5 01300F175804 7
ntp authenticate
ntp trusted-key 1
ntp server 131.1.13.1 key 1 prefer
R3(config)#
NTP status on R2 as well as R3 remians unsynch :
R3(config)#do sh ntp sta
Clock is unsynchronized, stratum 16, no reference clock
nominal freq is 250.0000 Hz, actual freq is 249.9822 Hz, precision is 2**24
reference time is 00000000.00000000 (00:00:00.000 UTC Mon Jan 1 1900)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 0.00 msec, peer dispersion is 0.00 msec
loopfilter state is 'FSET' (Drift set from file), drift is 0.000070901 s/s
system poll interval is 64, never updated.
R3(config)#
I am getting following on enabling debugs . I guess I have made no
mistake in config . Please do point out if any :
R3(config)#
*Nov 16 14:13:41.981: NTP message sent to 131.1.13.1, from interface
'Serial0/0/0.31' (131.1.13.3).
*Nov 16 14:13:42.033: NTP message received from 131.1.13.1 on
interface 'Serial0/0/0.31' (131.1.13.3).
*Nov 16 14:13:42.033: NTP Core(DEBUG): ntp_receive: message received
*Nov 16 14:13:42.033: NTP Core(DEBUG): ntp_receive: peer is
0x471D86C0, next action is 1.
*Nov 16 14:13:42.033: NTP Core(NOTICE): ntp_receive: dropping message:
crypto-NAK.
R3(config)#
*Nov 16 14:14:40.985: NTP message sent to 131.1.13.1, from interface
'Serial0/0/0.31' (131.1.13.3).
*Nov 16 14:14:41.037: NTP message received from 131.1.13.1 on
interface 'Serial0/0/0.31' (131.1.13.3).
*Nov 16 14:14:41.037: NTP Core(DEBUG): ntp_receive: message received
*Nov 16 14:14:41.037: NTP Core(DEBUG): ntp_receive: peer is
0x471D86C0, next action is 1.
*Nov 16 14:14:41.037: NTP Core(NOTICE): ntp_receive: dropping message:
crypto-NAK.
R3(config)#
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