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helpmeadtran
New Contributor

Can't get NTP to work on 908E

Trying to get NTP to work on 908E:

1)  Enabled DNS Lookup

2)  Configured default gateway

3)  Configured NTP Master 4 (stratum 4)

4)  Configured ntp server  time.nist.gov

908E-R1#sho run | inc ntp

no ip sntp server

ntp master 4

ntp server time.nist.gov

908E-R1#sho ntp status

Clock is synchronized, stratum 5, reference is LOCAL

reference time is 7C558180.0 (01:28:16 EST Thu Feb 7 2036)

clock offset is 0.00 msec, root delay is 0.00 msec, precision is 2**11

root dispersion is 10.52 msec, peer dispersion is 0.52 msec

clock jitter is 0.00 msec, clock drift compensation is 0.000000e+00 s/s

clock stability is 0.000000e+00 s/s

908E-R1#sho ntp asso

     Address        ref ID        st  when  poll  reach  delay  offset      disp

VRF: -DEFAULT-

*~127.127.1.0     LOCAL(0)         4    89   128   0377   0.00    0.00      0.52

* master (synced), # master (unsynced), + candidate, - discarded, ~ configured

x falseticker, . excess

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4 Replies
unified
Valued Contributor
Valued Contributor

Re: Can't get NTP to work on 908E

Hi,

Try this:

sntp server time.nist.gov version 3

helpmeadtran
New Contributor

Re: Can't get NTP to work on 908E

I should have mentioned that I already tried that. 

Apparently NTP and SNTP can't be enabled at the same time?  When I enable SNTP, none of the NTP commands work (like "sho ntp status" or "sho ntp asso").

908E-R1(config)#sntp server time.nist.gov version 3

You must first disable NTP before configuring SNTP.

unified
Valued Contributor
Valued Contributor

Re: Can't get NTP to work on 908E

That is correct remove the ntp settings and just add.

sntp server time.nist.gov version 3

You may also want to make sure you can ping time.nist.gov from the 908e.

This will rule out DNS or routing issues.

helpmeadtran
New Contributor

Re: Can't get NTP to work on 908E

That worked!

Thank you!