[ntp:questions] ntp client running on windows not syncing ntp server running on windows

sneha b snehabadardinni at gmail.com
Tue Nov 22 07:03:44 UTC 2016


Hi,

I am using ntp.4.2.8, compiled the source code from ntp.org and using the
same.
But when I try to run ntpd.exe the client is not syncing with server, if I
change time in client and run ntpd.exe -q I see some KoD packets received
at client side.
Below is the message I am seeing:

C:\Windows\SysWOW64>ntpd.exe -q
22 Nov 14:18:47 ntpd[40932]: ntp-keygen 4.2.8p8 at 1.3265-o Oct 28 12:19:56.86
(UTC+05:0-30) 2016  (1): Starting
22 Nov 14:18:47 ntpd[40932]: Command line: ntpd.exe -q
22 Nov 14:18:47 ntpd[40932]: Raised to realtime priority class
22 Nov 14:18:47 ntpd[40932]: Clock interrupt period 15.625 msec
22 Nov 14:18:47 ntpd[40932]: Performance counter frequency 2.604 MHz
22 Nov 14:18:47 ntpd[40932]: Windows clock precision 0.977 msec, min. slew
6.400 ppm/s
22 Nov 14:18:47 ntpd[40932]: using Windows clock directly
22 Nov 14:18:47 ntpd[40932]: proto: precision = 976.500 usec (-10)
22 Nov 14:18:47 ntpd[40932]: proto: fuzz beneath 0.174 usec
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 11
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 12
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 13
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 14
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 15
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 16
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 17
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 18
22 Nov 14:18:47 ntpd[40932]: authreadkeys: invalid type for key 19
22 Nov 14:18:47 ntpd[40932]: Listen and drop on 0 v6wildcard [::]:123
22 Nov 14:18:47 ntpd[40932]: Listen and drop on 1 v4wildcard 0.0.0.0:123
22 Nov 14:18:47 ntpd[40932]: Listen normally on 2 Internal network
165.100.10.1:123
22 Nov 14:18:47 ntpd[40932]: Listen normally on 3 DICOM network
3.204.31.137:123
22 Nov 14:18:47 ntpd[40932]: Listen normally on 4 Loopback Pseudo-Interface
1 [::1]:123
22 Nov 14:18:47 ntpd[40932]: Listen normally on 5 Loopback Pseudo-Interface
1 127.0.0.1:123
22 Nov 14:18:47 ntpd[40932]: receive: KoD packet from 3.204.31.138 has
inconsistent xmt/org/rec timestamps.  Ignoring.
22 Nov 14:19:51 ntpd[40932]: receive: KoD packet from 3.204.31.138 has
inconsistent xmt/org/rec timestamps.  Ignoring.
22 Nov 14:20:56 ntpd[40932]: receive: KoD packet from 3.204.31.138 has
inconsistent xmt/org/rec timestamps.  Ignoring.
22 Nov 14:22:03 ntpd[40932]: receive: KoD packet from 3.204.31.138 has
inconsistent xmt/org/rec timestamps.  Ignoring.
22 Nov 14:23:10 ntpd[40932]: ntservice: The Network Time Protocol Service
is stopping.

Client has ntp.conf with below details:

peer 127.127.1.0
server 3.204.22.22 prefer key 1
keys <path to keys file>
trustedkey 1
tinker step 0

server has below in ntp.conf
peer 127.127.1.0
server 165.100.10.1
keys <path to keys file>
trustedkey 1 2 3 4 5
tinker step 0


I am struck here, as I am unable to go further, in wireshark capture I am
seeing the NTP packets being exchanged between client and server.

Thanks in advance


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