On 02/08/2011 05:54 PM, Drew wrote: >> I have posted to the ipsec-devel list and haven't gotten any responses. Also I >> have spent 2 days googling with >> no results about the above setup. Is it even possible to tunnel ipv4 packet thru >> an ipv6 ipsec tunnel? >> > AFAIK, No. > > IPv4& IPv6 are different protocols so if you want to move IPv6 > traffic over a IPv4 IPSEC tunnel you need to encapsulate the IPv6 > payload within IPv4 packets. The reverse is also true of IPv4 over > IPv6. > > This is why tunnel brokers like Freenet6& Teredo exist, you can't > push IPv6 traffic out across an IPv4 only network without tunneling. > > > Hi Drew, Thanks for taking the time to respond. I understand they are different. I want to tunnel ipv4 in a ipv6 ipsec tunnel. Ipsec-tools lets me configure the tunnels and establishes the SAs but packets get dropped on the receiving side. I am able to create a 4in6 tunnel that ride inside a strict ipv6 ipsec tunnel so I have a work around. I am mainly trying to see if anyone has gotten what I described in my initial post to work. -- Stephen Clark *NetWolves* Sr. Software Engineer III Phone: 813-579-3200 Fax: 813-882-0209 Email: steve.clark at netwolves.com http://www.netwolves.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110209/14d3c746/attachment-0005.html>