[Xorp-users] Address not adding

[Pavlin Radoslavov]

Emmanuel A. Adigun <eadigun at cs.up.ac.za> wrote:

> Thanks Palvin.
> I want to configure two addresses in RIP solely to monitor routes
> advertisements, i.e. request and update packets sent and received. 

Are you intending to configure RIP in such way so you can see the RIP
packets originated by one of the IP addresses on the interface and
received on the same interface (but the other IP address)?
I don't think it will work this way.
You should run RIP instances on two different (neighbor) machines,
and even then you should enable RIP on one IP address per interface.

> I'm also trying to create peer groups because at the moment when I say "show
> rip peer statistics all" there are no known peers.

Were you running RIP on two neighbor machines on a single machine
with multiple addresses enabled?
If the former, it should work so please send both configurations. If
the latter, it won't work (see above).

In any case, please let us know how it goes.
We might need to rethink (and/or fix) the multiple IP address
configuration in RIP, and your feedback will help us understand
better your requirements for the multiple address configuration.

Thanks,
Pavlin

> I'll try using a policy.
> At the moment it's working with two addresses and no more but there is no
> request and updates packets sent and received.
> 
> Many thanks,
> Emmanuel     
> 
> -----Original Message-----
> From: Pavlin Radoslavov [mailto:pavlin at icir.org] 
> Sent: 31 July 2007 01:22 AM
> To: Emmanuel A. Adigun
> Cc: xorp-users at xorp.org
> Subject: Re: [Xorp-users] Address not adding 
> 
> > I'm trying to implement RIP and I keep getting the attached error message.
> > My config file is also attached below the error message.
> > 
> > Any help will be appreciated.
> 
> Please try with enabling only one RIP address per interface/vif.
> 
> I did some testings and it seems that currently you cannot enable
> more than address per interface/vif inside the RIP configuration.
> 
> For the record, the root of the error is that on the systems I
> tested (Linux with kernel 2.6.20 and FreeBSD-4.10), you cannot join
> twice the same multicast group on the same socket with IP addresses
> that belong to the same interface. I.e.,
> "Join(G, Ifaddr1)" and "Join(G, Ifaddr2)" on the same socket will
> fail if Ifaddr1 and Ifaddr2 belong to the same network interface,
> but will succeed if they belong to different network interfaces.
> 
> 
> Could you explain the reason you want to configure 2+ addresses
> (on the same interface) inside RIP. E.g., is it because you want to
> advertise the routes for each IP address or for some other reason?
> I believe that using a policy to export the "connected" routes will
> advertise the routes even if you enable only one of the IP addresses
> inside the RIP configuration, though I haven't explicitly tested
> that.
> 
> Thanks,
> Pavlin
> 
> 
> 
> 
> > 
> > Thanks
> > 
> > Emmanuel
> > _______________________________________________
> > Xorp-users mailing list
> > Xorp-users at xorp.org
> > http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/xorp-users
> 
> 
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