NTP Master reference IP 127.127.1.1 changed

From: Tom Kacprzynski <tom.kac_at_gmail.com>
Date: Mon, 15 Nov 2010 12:08:44 -0600

Hello,
I was wondering if anyone else noticed this, but I appears that Cisco
changes their NTP reference IP address on master NTP routers from
127.127.7.1 to 127.127.1.1. Looks like this change occurs somewhere between
12.4.15T5 and 12.4.24T2.

How would this relate to CCIE lab? Well if you have to configure an ntp
access list on a master ntp router you would have to change the ip address
to 127.127.1.1 from 127.127.7.1.

Rack1R4#sh ntp status
Clock is synchronized, stratum 5, reference is *127.127.1.1*
nominal freq is 250.0000 Hz, actual freq is 250.0004 Hz, precision is 2**24
reference time is D08BF622.DF6C0502 (18:10:42.872 UTC Mon Nov 15 2010)
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 'CTRL' (Normal Controlled Loop), drift is -0.000001923
s/s
system poll interval is 16, last update was 4 sec ago.
Rack1R4#sh ver | i Version
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), *Version
12.4(24)T2*, RELEASE SOFTWARE (fc2)

and on old version
Rack1R5#SH NTP STATUS
Clock is synchronized, stratum 5, reference is *127.127.7.1*
nominal freq is 250.0000 Hz, actual freq is 250.0119 Hz, precision is 2**18
reference time is D08BFC65.BA0F4A3C (18:37:25.726 UTC Mon Nov 15 2010)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 0.02 msec, peer dispersion is 0.02 msec
Rack1R5#SH VER | i Version
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version *
12.4(15)T5*, RELEASE SOFTWARE (fc4)

Regards,

Tom Kacprzynski

Blogs and organic groups at http://www.ccie.net
Received on Mon Nov 15 2010 - 12:08:44 ART

This archive was generated by hypermail 2.2.0 : Sun Dec 05 2010 - 22:14:56 ART