topic Re: Default Gateway Problem in Operating System - HP-UX

Default Gateway Problem

sriharikumar_1 — Sat, 24 Mar 2001 07:09:12 GMT

Hi,

In our HP 9000 L1000 server running HP-UX 11.00, whenever the server is rebooted, the default gateway vanishes. So now we are adding it everytime after rebooting the server.

Can anyone prescribe a way to avoid this problem.

Awaiting for all of your valuable replies.

Thanks and Regards.

Re: Default Gateway Problem

Philip Chan_1 — Sat, 24 Mar 2001 07:58:08 GMT

Hi,

How did you setup the gateway? I found using the "set_parms" command is the most reliable way of doing this. Also, if you could post the /etc/rc.config.d/netconf file of your system that would made the trouble shooting process much easier.

Rgds,
Philip

Re: Default Gateway Problem

Rita C Workman — Sat, 24 Mar 2001 13:04:30 GMT

It should be entered in your /etc/rc.config.d/netconf file. You may want to double check this file and make sure it's solid...

/rcw

Re: Default Gateway Problem

Ajitkumar Rane — Sat, 24 Mar 2001 15:15:01 GMT

One more way SAM ->Networking and communication -> Internet Addresses : Action, Default Gateway, enter the ipaddress and the name of your gateway.

Goodluck.

Re: Default Gateway Problem

janders — Sun, 25 Mar 2001 02:40:37 GMT

Hi,
Check for errors in the /etc/rc.log file.
The default gateway/route should be defined in the /etc/rc.config.d/netconf near the bottom of the file. Also check for duplicates/backups of this file in the /etc/rc.config.d directory as I've seen some situations where this causes weird problems.

Hope that helps.
Jason

Re: Default Gateway Problem

Vincent Stedema — Mon, 26 Mar 2001 10:14:23 GMT

Hi,

HP-UX 11.00 has a "feature" called Dead Gateway Detection. Basically, the OS tries to ping its default gateway. If the default gateway doesn't respond, the OS just deletes the route entry. Nice feature, huh?

To prevent the OS from doing so you have to use ndd. This can be done on the fly:

ndd -set /dev/ip ip_ire_gw_probe 0

But, if you want this setting to remain active after a reboot, edit your /etc/rc.config.d/nddconf accordingly:

TRANSPORT_NAME[0]=ip
NDD_NAME[0]=ip_ire_gw_probe
NDD_VALUE[0]=0

Hope this helps..

Vincent

Re: Default Gateway Problem

Marcel Boon — Mon, 26 Mar 2001 10:44:26 GMT

Hi,

Setup is done in the /etc/rc.config.d/netconf file under the config of your interface:

ROUTE_DESTINATION[0]=default
ROUTE_MASK[0]=""
ROUTE_GATEWAY[0]=172.10.1.254
ROUTE_COUNT[0]=0
ROUTE_ARGS[0]=""

For a hub/router/switch you will want to set
ROUTE_COUNT=1.
For local interface card you will set
ROUTE_COUNT=0.

Marcel