Router1>ping 8.8.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/10/12 ms
Router1>ping 10.55.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.55.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
Router1>ping 10.55.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.55.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
Router1>ping 10.10.1.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.1.10, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Router1>ping 10.10.1.15
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.1.15, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Router1>ping 192.168.5.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.5.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Router1>ping 192.168.5.41
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.5.41, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Router1>ping 8.8.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.4.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/11/12 ms

Router1>show ntp status
Clock is synchronized, stratum 2, reference is 129.6.15.30    
nominal freq is 250.0000 Hz, actual freq is 250.0008 Hz, precision is 2**20
ntp uptime is 722000 (1/100 of seconds), resolution is 4000
reference time is DF580EAE.F5B09015 (21:21:34.959 CDT Thu Sep 27 2018)
clock offset is 0.9851 msec, root delay is 34.88 msec
root dispersion is 6.38 msec, peer dispersion is 3.17 msec
loopfilter state is 'CTRL' (Normal Controlled Loop), drift is -0.000003336 s/s
system poll interval is 64, last update was 82 sec ago.

Router1>show ntp associations 
  address         ref clock       st   when   poll reach  delay  offset   disp
-~132.163.97.3    .NIST.           1     30     64   377 44.842   4.500  4.718
+~132.163.96.3    .NIST.           1      1     64   377 44.250   4.371  1.750
+~128.138.140.44  .NIST.           1     49     64   377 38.563   2.572  2.624
*~129.6.15.30     .NIST.           1     21     64   377 34.639   0.985  3.178
 * sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured
Router1>