Re: [Hampshire] Anyone know much about IPv6 tunnels?

On 19 December 2010 11:04, Wayne Lee <linkconnect@???> wrote:
>> Just need the Broadband ADSL router to support IPv6 over PPP and
>> include IPv6 firewall/port forwarding features.
>
> There are very few ADSL routers which support v6 of ppp. The
> Manufactures have been very slow in dealing with this(lack of demand
> being the reason they cite). Of course you can use a Cisco, Juniper
> and most other Hi-end routers but I don't know many homw users who are
> willing to pay the price for them.
>
> If you have a linux/bsd box (like us) you can put the router in bridge
> mode and use the pppoe client on that to deal with v6 but of course
> that then requires support from the ISP. Supplying v6 addresses is the
> easy part, the hard part is making sure you can reach v4 only sites
> and vice-versa and making this scale in a reliable way.
>

The DNS system works that out for you.
You do a DNS lookup, if you get a AAAA response, you talk to it via
IPv6, if you only get a A response, you talk to it via IPv4

Your ADSL router will need to do both PPP (IPv4) and PPP(IPv6), and so
the ADSL router will have both IPv4 and IPv6 addresses.

Every machine on your network would also do IPv4 and IPv6, depending
on what the destination host supported.
There are protocols that deal with IPv6 only hosts talking to IPv4
only hosts, but I don't think those protocols are cost efficient.

Businesses will start to make their web sites IPv6 visible as they
will want to reach all their customers, even the IPv6 only customers.

I can load my own Linux kernel on a netgear ADSL router and it will be
IPv6 PPP, but without the large ISPs like sky and bt doing it at the
other end, what is the point.

The ISPs are clearly dragging their feet on all this.