[Xorp-users] Re: help establishing OSPF adjacencies

[Nick Feamster]

On Mon, Oct 17, 2005 at 07:25:59PM -0700, Pavlin Radoslavov wrote:
> First, can you confirm whether you still have the same problem even
> without using Click?

Yes, I do.

> I'd recommend to check whether there are any firewall rules in your
> kernel that may be preventing you from receiving the traffic (e.g.,
> rules that throw away the multicast packets, etc).
> 
> To debug the problem you can try to use the nemesis-ospf program
> from the Nemesis project (http://nemesis.sourceforge.net/).
> You can use that program to generate your own OSPF packets.

OK, will do.  there may be something blocking the multicast packets or
something.  I'll have a look with tcpdump, too.

> > fea {
> >     unicast-forwarding4 {
> >             disable: true
> >     }
> > }
> > 
> > should the fea have something else?
> 
> You don't need anything else in the fea, but "disable: true" should
> be "disable: false".

In that case, I get:

[ 2005/10/17 23:54:52  ERROR xorp_rtrmgr:2460 RTRMGR +671
master_conf_tree.cc commit_pass2_done ] Commit failed: 102 Command
failed Cannot open file /proc/sys/net/ipv4/ip_forward for writing:
Operation not permitted

Even when running as root, which may be a problem with planetlab.  Hmm.

-Nick