topic Re: Changing default route... in Operating System - HP-UX

Changing default route...

boomer_2 — Mon, 16 Jun 2008 05:03:41 GMT

Hi guys,
I am just looking for some learned help here to change the network default gateway address easily with no network or operating disruption (preferably) to a running production system. Can this easily be done in SAM? Is it a default route change?
HP-UX v11i v2 or 11.23
Any help or recommendations appreciated.

2servers rx6600 in cluster....
16 gb ram
cluster need not be brought down right ?????

Re: Changing default route...

Laurent Menase — Mon, 16 Jun 2008 06:18:02 GMT

Hi,
By hand you will be sure of the result, avoid SAM to do that.

just add your new default route
then remove the old one

route add default newaddress 1
route delete default oldaddress

change the default address in /etc/rc.config.d/netconf
ROUTE_DESTINATION[0]="default"
ROUTE_MASK[0]=""
ROUTE_GATEWAY[0]=""
ROUTE_COUNT[0]="1"
ROUTE_ARGS[0]=""

Re: Changing default route...

Asif Sharif — Mon, 16 Jun 2008 06:19:04 GMT

Same question posted before.

See the below thread
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1207503

Regards,
Asif Sharif

Re: Changing default route...

boomer_2 — Mon, 16 Jun 2008 06:45:12 GMT

Hi Laurent,
That means i dnt have to put my cluster down right ????????????????

Re: Changing default route...

Jeeshan — Mon, 16 Jun 2008 06:48:50 GMT

check this link

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=33828

Re: Changing default route...

Jeeshan — Mon, 16 Jun 2008 07:04:49 GMT

changing default route you need not to down the cluster.

Re: Changing default route...

Laurent Menase — Mon, 16 Jun 2008 07:33:00 GMT

no you don't need,
Once you remove the old default, all the intenal routes created for your connections will be flushed automatically.
A new internal route will be created on next packet sent, - just taking the default route, and if needed making a arp resolution of that new route

Re: Changing default route...

Laurent Menase — Mon, 16 Jun 2008 07:35:46 GMT

I means the internal routes using your old default queue will be flushed - not the one not using it of course -