[sr-dev] git:3.3: New Option: "x" for automatic bridging between IPv4 and IPv6.

[Juha Heinanen]

admin at sip-router.org writes:

> New Option: "x" for automatic bridging between IPv4 and IPv6.
> Based on the following assumption: "i" is the IPv4 interface
> and "e" is the IPv6 interface on the RTPProxy (tested with both
> RTPProxy and Sipwise's ngcp-mediaproxy-ng).
> 
> Mechanism is as follows:
> - IP in SDP is IPv4: Do bridging "ie"
> - IP in SDP is IPv6: Do bridging "ei"

i don't know how this would help.  proxy gets invite that includes ipv4
or ipv6 address in sdp and $rd is domain name.  what should proxy config
do?

in such situations perhaps rtpproxy should ADD its own address of
different protocol in sdp and then when reply comes, un-arm rtpproxy if
reply included address of original protocol.

i don't know if legacy UAs can deal with two ip addresses in sdp.  if
not, this whole bridging stuff is wasted effort.

-- juha