topic Re: netmask/Gateway changed itself in Operating System - HP-UX

netmask/Gateway changed itself

ckchan — Tue, 14 Feb 2006 01:35:38 GMT

Hello there,
Some of our Unix servers have access problem
suddenly, found that route table have been changed. Question, What would be the possible
cause ? Would the route table changed itself when encountered problem ?

Thank you

Re: netmask/Gateway changed itself

Muthukumar_5 — Tue, 14 Feb 2006 01:48:59 GMT

May be some one tried to change the setting by command line with ifconfig or /etc/rc.config.d/netconf file is changed.

Are you using DHCP? If so your interface ip-address, gateway and netmask is changed too.

--
Muthu

Re: netmask/Gateway changed itself

Arunvijai_4 — Tue, 14 Feb 2006 01:54:22 GMT

Hello,

Did you look into log files ? syslog.log and dmesg?

-Arun

Re: netmask/Gateway changed itself

ckchan — Tue, 14 Feb 2006 02:13:11 GMT

Hi
Nothing particular in dmesg and syslog. The server is not using DHCP,
One of the server, netmask has been changed, the other, the default gateway has been changed to the host ip address.
Would the server reread the setting in /etc/rc.config.d/netconf without rebooting the server?

thank you

Re: netmask/Gateway changed itself

Muthukumar_5 — Tue, 14 Feb 2006 03:38:50 GMT

It is possible when you are doing as,

# /sbin/init.d/net stop
# /sbin/init.d/net start

it will do it. Check history files for ifconfig or route command usage.

--
Muthu

Re: netmask/Gateway changed itself

Arunvijai_4 — Tue, 14 Feb 2006 03:40:47 GMT

Hello,

You can do with # /sbin/init.d/net
USAGE: /sbin/init.d/net {start_msg | stop_msg | start | stop}

-Arun

Re: netmask/Gateway changed itself

ckchan — Tue, 14 Feb 2006 19:37:48 GMT

Thank you !