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Re: draft-wbeebee-ipv6-cpe-router-03
On Tuesday 18 November 2008 23:06:59 Brian E Carpenter, you wrote:
> On 2008-11-19 09:37, Antonio Querubin wrote:
> ...
>
> > How about auto-enabling 6to4 assuming it can actually reach a
> > 192.88.99l.1 gateway?
>
> That doesn't guarantee connectivity; you actually need to see an
> IPv6 reply before you know that 6to4 is working. So you really
> need to enable 6to4, run a reachability test, and disable it if
> no response.
Even then. It might be working... until the stateful firewall expires your
proto-41 pinhole. Here comes the 6to4 blackhole.
--
Rémi Denis-Courmont