[ntp:questions] NTP is deleting the interface on lease expiry from DHCP Server

akash saxena saxenaakash90 at gmail.com
Wed Feb 8 08:23:01 UTC 2017


Hi all,

I am facing the issue with ntpd.
My ntpd is listening the ip provided by the DHCP Server.
It looks for the sync in 10 seconds but before 10 seconds DHCP lease expiry
happened and
ntpd started deleting the interface on which it was priviously listening.

and this stops the communication between my client and NTP server.

*Refer the logs:*

 ntpd[1686]: proto: precision = 0.989 usec (-20)
 ntpd[1686]: Listen and drop on 0 v6wildcard [::]:123
 ntpd[1686]: Listen and drop on 1 v4wildcard 0.0.0.0:123
 ntpd[1686]: Listen normally on 2 lo 127.0.0.1:123
 ntpd[1686]: Listen normally on 3 eth1 172.19.61.236:123
 ntpd[1686]: Listen normally on 4 lo [::1]:123
 ntpd[1686]: Listen normally on 5 eth1 [fe80::ee8c:a2ff:fe31:743d%4]:123
 ntpd[1686]: Listening on routing socket on fd #22 for interface updates
 ntpd[1686]: *Deleting interface #3 eth1*, 172.19.61.236#123, interface
stats: received=1, sent=1, dropped=1, active_time=5 secs
 ntpd[1686]: 104.154.107.129 local addr 172.19.61.236 -> <null>
 ntpd[1686]: 146.148.32.216 local addr 172.19.61.236 -> <null>
 ntpd[1686]: Listen normally on 6 eth1 172.19.61.236:123
 ntpd[1686]: new interface(s) found: waking up resolver


*Can anyone please explain me what is this Deleting the interface by ntpd.*

Thanks in advance.

*Regards.*
*Akash Saxena*


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