[radvd-devel-l] radvd not acting on recieved RA's

Pekka Savola radvd-devel-l@litech.org
Sun, 18 Nov 2001 21:22:03 +0200 (EET)

On Sun, 18 Nov 2001, Iain Young wrote:
> I seem to have a problem with radvd not acting on Router Advertisments
> received from a Cisco 2620.
> I know the RA's are being sent, and received, as I can see them with
> radvdump.
> I am running linux-2.4.15-pre5 (linus), and radvd 0.6.2pl4, with ip, 
> from ip route2 reporting iproute2-ss001007
> Everything _seems_ fine, but no addresses ever get added to the
> ethernet interface.

Are you sure you've understood the function of radvd correctly?  You don't
need it on nodes where you want to autoconfigure addresses.

If/as you've enabled forwarding on your Linux box, router advertisements
from Cisco will automatically be ignored.  This is a feature.

If you set like:

net.ipv6.conf.eth0.forwarding = 0
net.ipv6.conf.eth0.autoconf = 1
net.ipv6.conf.eth0.accept_ra = 1

You should be able to autoconfigure that interface .. but that makes 
little sense for a router.


Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords