BGP: Add support for peering with link-local IPv6 addresses

[Ondrej Zajicek]

On Sun, Dec 19, 2010 at 09:55:24AM +0100, Matthias Schiffer wrote:
> Anyways, I'd love to see this patch included in Bird. It shouldn't make
> any difference when you don't use the interface attribute, so it won't have
> bad influence on people not using this feature, and it makes Bird an
> alternative to Quagga when you need link-local peering support. :-)

I checked the patch and it seems that there are some issues with the
neighbor cache - neigh_find2() really doesn't work with NEF_STICKY and
link-local together, because the main purpose of sticky neighbors is to
notify the protocol when the appropriate iface appears and is ready. If
the iface is not found in bgp_start_locked(), (call if_find_by_name()
returns NULL), the BGP session is never started (even if the interface
later appears). I will look at that.

-- 
Elen sila lumenn' omentielvo

Ondrej 'SanTiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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