[SR-Users] Kamailio+B2BUA on IPv4-only and NAT64 Apple app store tests

[Daniel-Constantin Mierla]

Hello,

I am not sure what do you mean with:

"""
I have noticed that if Kamailio is IPv4-only and it "sees"
IPv6-addresses(Contact, Via headers??) it will try to resolve the
IPv6-address as a DNS name!
"""

If it just that on the specific deployment Kamailio has to bind on IPv4 and
run as an IPv4 application, or actually you mean that Kamailio does not
support IPv6?!?

For the later, Kamailio supports IPv6 for quite long time and should work
fine on IPv6 only or mixed networks.

Cheers,
Daniel

On Tue, Sep 17, 2019 at 3:22 AM Anthony Alba <ascanio.alba7 at gmail.com>
wrote:

> Hi folks,
>
> I'm wondering what you do to pass Apple app store tests (IPv6-only
> NAT64/DNS64 scenario) with the iOS app likely to put IPv6 addresses in
> the SDP, when Kamailio and your B2BUA(Asterisk, FreeSWITCH,...) are
> IPv4-only endpoints.
>
> By "pass" I mean media flowing + SIP working - not sure the app store
> gatekeepers would actually test media, but it would be nice to have a
> robust solution.
>
> Strictly speaking, this is not a Kamailio's problem but  a media
> SDP/<your-rtp-proxy-of-choice> problem. But since everything is so
> closely intertwined I'm wondering where you choose to the location the
> "solution".
>
> I have noticed that if Kamailio is IPv4-only and it "sees"
> IPv6-addresses(Contact, Via headers??) it will try to resolve the
> IPv6-address as a DNS name!
>
> The Wikipedia article on NAT64 mentions 464XLAT(RFC 6877) and Port
> Control Protocol (RFC 7225), but those seem to be deep rabbit-holes...
>
> Cheers
> Anthony Alba
>
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-- 
Daniel-Constantin Mierla - https://www.asipto.com
https://twitter.com/miconda - https://www.linkedin.com/in/miconda
Kamailio Advanced Training - https://www.asipto.com/u/kat
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