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Re: Ideas for IPv6 BGP and tunnelling



On Thu, 23 Apr 2009, Adrian Kennard wrote:
Mohacsi Janos wrote:
 Hi Adrian,
     Are you referring 6PE (http://tools.ietf.org/html/rfc4798) or
 something new?

Not MPLS, no. Its IPv6 over IPv4 (protocol 41) tunnels and how to link IPv6 islands in a more seamless way using BGP.

If this is the right place to raise the issue I'll provide a few more details of the issues and solution if you like.

Maybe you should take a look at the softwire WG. They're dealing with similar problems.

But I fear there so far the idea hasn't gotten much traction. In fact, the RFC4798 predecessor documents [1] included ability to set up tunnels over GRE and similar non-MPLS encapsulations. This was explicitly _removed_ because the solution was targeted at MPLS networks, not as a general purpose BGP-signalled tunneling mechanism.

[1] take a look at e.g:
http://tools.ietf.org/html/draft-ooms-v6ops-bgp-tunnel-00

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