deleting all default gw

eantoranz · 06-27-2005, 03:33 PM

How can I delete all default gws in a single CLI stroke?

I thought

Code:

ip route del default

would do,... but it only removes a single GW instance. If there are more, they remain the same.

peter_robb · 06-28-2005, 07:52 AM

It would need to be done with at least 3 commands, one each for each route and one to flush the route cache..
You could make a script to do that, eg copy some of the ifdown script..

What are you trying to achieve with it?

eantoranz · 06-28-2005, 08:29 AM

I'm working on a script that creates a multipath default route from separate DHCP connections.

eantoranz · 06-28-2005, 09:38 AM

So, basically, I could keep running "ip route del default" while there are "default" items in ip route show, right?

Something like:

Code:

while [ $(ip route show | grep default | wc -l) != 0 ]; do
     ip route del default
done
ip route flush cache

That WOULD do, right?

peter_robb · 06-28-2005, 10:15 AM

There are different behaviours of ip route.. Mine requires more detail to delete..

That script would work ok..
The important part is to make replies go back out the path they came in on, as explained in http://www.tldp.org/HOWTO/Adv-Routin...ple-links.html

eantoranz · 06-28-2005, 10:26 AM

Oh, I know, I know!