On Tue, Jan 27, 2015 at 1:07 PM, Ivan Walker <nznog@itpro.co.nz> wrote:

It has been a while since I looked by as far as I recall I found that Cisco sends some IPv6 ND packets marked with something other than 802.1p 6 or 802.1p 0 - I think possibly 802.1p 7 but could have been 802.1p 5.�� This broke IPv6 for us (using 0/110 PVC with VLAN 10 - Ethernet bridge).

Cisco does not support the remarking or even setting of the default 802.1p values used, and the last response I had from Chorus was "EUBA is unable to support IPv6, reason is because the Alcatel equipment deployed for this network doesn��t support IPv6".

That reminds me. A Juniper SRX has the same behaviour which will cause PPPoE negotiation to fail over EUBA-0 or WVS. I believe the SRX defaults to .1p of 7 for PPPoE negotiation.

To override:

set class-of-service host-outbound-traffic ieee-802.1 default be

If that's useful to anyone then buy me beer at NZNOG :)

Dave