Re: [Solved] Any CenturyLink IPv6 engineers/tech people around?

On 3/4/14, 2:38 PM, Brielle Bruns wrote:

Hello all,

Don't suppose there's any CenturyLink engineers/tech people on this list that can look into a problem with their IPv6 6rd service?

Thanks for the off-list replies. Think I've got the issues figured out. 6rd behaves a lot like 6to4 in how it handles traffic destined for hosts in the same ISP IPv6 subnet - and aggressive filtering of protocol 41 on external facing interfaces can break that. RFC5569 has more details on implementation, in case anyone else runs into this problem at a later point. -- Brielle Bruns The Summit Open Source Development Group http://www.sosdg.org / http://www.ahbl.org