bird ospf and ipv6

Mathias Wolkert tias at netnod.se
Wed Mar 23 13:58:42 CET 2011


On 3/23/11 11:04 , Ondrej Zajicek wrote:
> On Tue, Mar 22, 2011 at 03:13:06PM +0100, Mathias Wolkert wrote:
>> Hi
>>
>> I have similar issues running bird 1.2.5 on vanilla debian lenny.
>>
>> IPv4 wise I assign /32s to individual lo:x instances as service addresses.
>>
>> These are showing up in bird.
>>
>> IPv6 wise I cannot assign /128s to individual lo:x but to the "real"
>> loopback lo.
>>
>> This works fine in quagga.
>>
>> These are not showing up in bird.
>>
>> If I look at the kernel table from shell with ip -6 route, the /128s are
>> shown as "unreachable" with error -101 but working fine with ping and so
>> on.
>>
>> How would I do this "right"?
>
> On Linux, the simplest workaround (for OSPF problem) is just to add the
> address to the dummy interface [*] instead of the loopback interface.

This looks promising.
Thanks a lot.

>
> But you mentioned iBGP - in current stable version (1.2.5), iBGP
> is significantly limited and should be used with one-hop,
> directly reachable addresses. For proper iBGP, you should try git
> version, or wait for 1.3.0 (which will be probably released 2011-04-01).

I'm not doing it (yet), it was more of an example where I'd use 
loopbacks/dummies.

Thanks for the heads up though.

>
> [*] http://linax.wordpress.com/2009/09/12/linux-dummy-network-device/
>

/Tias



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