Hello,
I've recently swapped out our old 2610 routers for newer 2801's for use as NTP servers. The 2801 is running 15.1(4)M9.
The router is configured as such:
ntp server 0.pool.ntp.org
ntp server 1.pool.ntp.org
ntp server 2.pool.ntp.org
NTP#sho ntp status
Clock is synchronized, stratum 2, reference is 206.108.0.131
nominal freq is 250.0000 Hz, actual freq is 250.0233 Hz, precision is 2**24
reference time is D8DA587F.50595419 (10:49:19.313 CDT Thu Apr 16 2015)
clock offset is -4.5799 msec, root delay is 23.93 msec
root dispersion is 534.94 msec, peer dispersion is 14.83 msec
loopfilter state is 'CTRL' (Normal Controlled Loop), drift is -0.000093413 s/s
system poll interval is 1024, last update was 544 sec ago.
This works just fine for any newer device, but I have some older UPS's that are trying to use NTP version 1 and the router doesn't respond to the requests at all. NTPv3 and v4 requests get responded to without issue.
If I try setting another router as an NTPv1 peer I get:
NTP version 4 supports backward compatibilty to only version 2 and 3
Please re-enter version[2-4]
Setting NTP version 4 as default
So I'm wondering if there's a way to get the router to respond to these v1 requests?
Thanks in advance!
