On 2015/09/23 16:16, Marios Makassikis wrote:
> On 23 September 2015 at 15:34, Giancarlo Razzolini <grazzol...@gmail.com> 
> wrote:
> > Em 23-09-2015 04:40, Stuart Henderson escreveu:
> >> Saves messing about with DHCPv6-PD
> >
> > I see. So you translate from what exactly? Wouldn't it be better to use
> > af-to instead of nat?
> 
> Hello,
> 
> Rather than announcing the prefix obtained via DHCPv6-PD you can pick a prefix
> from fd00::/8 and announce that on your network.
> It is the equivalent to RFC1918 addresses, except it is for IPv6.
> Therefore, it is
> not routable and you need to perform NAT on it. The global address is the one
> the router obtained via static configuration/SLAAC/DHCPv6, which will then be
> used by all your clients.
> 
> > But I can relate to that, given that my CPE will
> > give me a PD, but won't route packets back because it thinks the prefix
> > is reachable using NDP. Hence the need for a proxy, which OpenBSD
> > currently doesn't have.
> >
> > Cheers,
> > Giancarlo Razzolini
> >
> 
> Your CPE will see only the OpenBSD router's address so it should work.

Exactly. It also makes it easier to handle multiple ISPs for load-balancing
or failover, which IPv6 handles poorly (short of using BGP).

Also it's good for winding up IPv6 purists :-)

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