IPb6 BGP between two birds

[Ondrej Zajicek]

On Mon, Feb 28, 2011 at 09:27:39AM +0100, Christian Riede wrote:
> Hello,
> 
> seems very simple, but..:
> 
> Setup: 
> 2 VMs on different ESX-Servers 
> OpenSuSE 11.3
> bird 1.2.5 (IPv4 and IPv6 in parallel)
> 
> Symptoms:
> IPv4 is working perfectly
> IPv6-BGP-Session does not come up.

FYI, the problem turned out to be a problem in kernel/driver/hardware
related to network offloading. It was workarounded by disabling all
network offloading on that device (ethtool -k). The problem manifested
by the BGP protocol stuck in OpenSent state (the OPEN message was sent
with incorrect checksum and discarded by the other side).

-- 
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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