AW: [Asterisk-Users] IPv6 support

[Olle E. Johansson]

Brunner, Armin wrote:
> In the setup I'm looking now there are IPv4-only and IPv6-only SIP-clients (or UA's) but the
> Proxies (or servers) are v4 and v6 dual-stacked (to make things a bit easier). 
> I think there will be a lot of IPv6-only SIP-clients  (e.g. mobile clients and all the existing IPv4-NAT'ed
> networks) and a lot of IPv4-only "old legacy" SIP-clients. We have to find ways to deal with such
> setups. 
>  
> There are ways with IPv4/IPv6 NAT-PT but I think this is not the right way (a lot of DNS-problems). 
> There seems to be a way with RTP-Proxies (thanks Olle for the link) but even this (if it works) seems
> not the right solution for the problem (it's still a kind of NAT who breaks the end-to-end idea). 
> What do you think about a back-to-back-server between the IPv4 and the IPv6 world? 
IPv6-enabled Asterisk fits right in.

I think the missing piece is how IPv4 clients now when to use a proxy or not. But with Asterisk,
you can (like NAT today) force the media stream through Asterisk and let asterisk make the decision
if it's possible to let the media stream bypass (SIP re-invite) asterisk.

Also, you could configure this is SER, so SER forwards calls from "mixed" networks to ASterisk.

Again, I would like to see someone looking into what it takes to IPv6 enable asterisk, both
coding (making sure we have space for 128 bits IP address and mask) and configuration,
(accepting IP addresses with : instead of . ).

/O