[ntp:questions] network is unreachable.

Martin Burnicki martin.burnicki at meinberg.de
Thu Nov 20 13:24:05 UTC 2008

Varrun Ashok wrote:
> hello everybody,
>  I have created my own OS using the 'cross linux from scratch ' online
>  book. then I installed ntp4-4.2.4p4 version onto the OS.
>  I even created an ntp.conf file with the following data
>  server mode 2 minpoll 4 prefer iburst
>  fudge refid GPS flag3 0 flag2 1 stratum 0.
>  (there cant be mistake in this because this worked in RH4 linux)
>  however i am facing problems:
>  after the kernel i created  booted i get the following message:
>  1)
>  NET: Registered protocol family 10
>  lo:disabled privacy extensions
>  libisc/ifiter_ioctl.c 567 REQUIRE (iter->pos<(unsigned int)
>  iter->ifc.ifc_len)failed 2)then after logging as root i typr ntpd nothing
>  is output. 3)then i type ntpq i get the message:
>  ntpq:connect:network is unreachable
>  if anybody know how to overcome this error please reply.
>  if you have any suggestions please tell me.

Please check also whether port 123 is listed in /etc/services, e.g.:

ntp             123/tcp    # Network Time Protocol
ntp             123/udp    # Network Time Protocol

where the /tcp entry is just for completeness since current NTP versions use
only UDP.

Martin Burnicki

Meinberg Funkuhren
Bad Pyrmont

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