[rancid] Cisco Pix "Configuration last modified" random time stamp

[Jason Ellison]

List,

 While using RANCID I have noticed that the pix "Configuration last modified"
keeps changing even though the device has not been modified.  This creates
an email every time RANCID is run.

 I know this is not a RANCID problem, but I thought someone on this list has
likely seen and maybe even solved this issue.

 I thought it may bee related to ntp drift being applied against the
"last modified" time... but disabling the ntp server did not change
this behavior.


pix# sh ver

Cisco PIX Security Appliance Software Version 7.2(4)
Device Manager Version 5.2(4)
Hardware:   PIX-515E, 64 MB RAM, CPU Pentium II 433 MHz

pix# show clock
23:08:02.091 CST Thu Feb 5 2009

pix# show ver | include modified
Configuration last modified by enable_15 at 16:38:15.162 CST Wed Feb 4 2009
pix# show ver | include modified
Configuration last modified by enable_15 at 16:38:14.792 CST Wed Feb 4 2009
pix# show ver | include modified
Configuration last modified by enable_15 at 16:38:15.292 CST Wed Feb 4 2009
pix# show ver | include modified
Configuration last modified by enable_15 at 16:38:14.872 CST Wed Feb 4 2009
pix# show ver | include modified
Configuration last modified by enable_15 at 16:38:15.492 CST Wed Feb 4 2009

pix# show clock
23:11:53.380 CST Thu Feb 5 2009

pix# show ntp status
Clock is synchronized, stratum 3, reference is 10.x.x.x
nominal freq is 99.9984 Hz, actual freq is 99.9917 Hz, precision is 2**6
reference time is cd3649b5.fad0cce6 (23:31:33.979 CST Thu Feb 5 2009)
clock offset is 13.9375 msec, root delay is 47.26 msec
root dispersion is 100.78 msec, peer dispersion is 19.13 msec