Subject: [tram] STUNBIS: Happy STUNballs

From: "Olle E. Johansson" <[email-masked]>
Date: Tue, 26 Jul 2016 09:11:40 +0200

Hi!

STUN now supports IPv6 too (because of the ICE usage) which is a significant change. The text in the intro needs to reflect this STUN usage and change too. From a previous NAT discovery role it’s about network path discovery now.

A STUN usage use DNS SRV to discover STUN servers. What happens if the server name resolves into both A and AAAA addresses?
In this case, STUNbis needs to have some advice on how to connect. RFC 2782 just says all IP addresses needs to be tried before moving
to the next SRV priority, but nothing about order or if we’re connecting in parallell or in serial mode. Serial mode would be bad
in STUN due to the timeouts.

This needs to be handled in StunBis.

/O