[hydra-dev] Networking stack (NAT, Firewall, IPv6)

[Simon Perreault]

On 06/09/2010 07:07 PM, Kevin P. Fleming wrote:
> I don't see how an existing STUN server could be useful, unless our SIP
> channel interface (for example) is just going to forward STUN requests
> it receives on its bound ports over to the STUN server for processing.

STUN is used in many places. You're thinking of STUN when it is
multiplexed over the SIP (i.e. sip-outbound) or RTP ports (i.e. ICE).
These are two such places, and the STUN server there is minimal,
integrated into the SIP UA, and only understands the Binding request. We
usually don't call that a "STUN server", although it is definitely one.

By "STUN (or TURN) server", we're referring to a separate entity that
the SIP UA contacts directly when it is gathering ICE candidates.

Simon
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