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

admin@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