From: Shailen Amichand (Shailen.Amichand@xxxxxxxxxx)
Date: Mon Mar 25 2002 - 22:41:07 GMT-3
Hi Folks
I need some help with this ntp config. I want to use authentication as
well as access-list 30. As soon as I put the access-group command in (I
have tried all the options server-only, peer, etc) the master clock gets
unsynch. Thus no other router can sync to it. What I am I missing here??
Thanks
Shailen
R9R07#
access-list 30 permit 192.168.2.138
access-list 30 permit 192.168.2.154
ntp authentication-key 1 md5 070C285F4D06 7
ntp authenticate
ntp access-group serve 30
ntp master 1
ntp update-calendar
End
R9R07#sh ntp stat
Clock is unsynchronized, stratum 16, no reference clock
nominal freq is 250.0000 Hz, actual freq is 250.0000 Hz, precision is
2**24
reference time is C04A44D7.B68A29EA (12:52:39.713 NZDT Tue Mar 26 2002)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 1875.02 msec, peer dispersion is 1875.02 msec
R9R07#
------------------------------------------------------------------------
----------------------------------------------------------
R9R07(config)#no ntp access-group peer 30
R9R07#
.Mar 26 13:07:35: NTP: 127.127.7.1 reachable
.Mar 26 13:07:35: NTP: synced to new peer 127.127.7.1
Mar 26 13:07:35: NTP: sync change
Mar 26 13:07:35: NTP: peer stratum changesh ntp stat
Clock is synchronized, stratum 1, reference is .LOCL.
nominal freq is 250.0000 Hz, actual freq is 250.0000 Hz, precision is
2**24
reference time is C04A4857.B6880FDB (13:07:35.713 NZDT Tue Mar 26 2002)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 15875.02 msec, peer dispersion is 15875.02 msec
R9R07#
------------------------------------------------------------------------
----------------------------------------------------------
R6R06#
ntp authentication-key 1 md5 01100F175804 7
ntp authenticate
ntp trusted-key 1
ntp server 192.168.2.153 key 1
end
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