6 Nov
2012
6 Nov
'12
2:36 p.m.
Hi Juha,
sorry for the late answer. I've discussed this with the SEMS guys (we
were discussing about IPv4/IPv6 interworking), who discussed this with
Alfred E. Heggestad.
We did agree, that SDP would probably never contain both IPv4 or IPv6
addresses. RFC 6157 (https://tools.ietf.org/html/rfc6157, "IPv6
Transition in the Session Initiation Protocol (SIP)") also recommends
using ICE for SIP-IPv4/IPv6 dual-stack.
If we follow this RFC and typical UA's, we will always have
"either/or" rather than "and".
However, i've never seen any dual-stack SIP-Endpoints so far..
Kind regards,
Carsten
2012/11/2 Juha Heinanen <jh(a)tutpro.com>om>:
admin(a)sip-router.org writes:
--
Carsten Bock
CEO (Geschäftsführer)
ng-voice GmbH
Schomburgstr. 80
D-22767 Hamburg / Germany
http://www.ng-voice.com
mailto:carsten@ng-voice.com
Office +49 40 34927219
Fax +49 40 34927220
Sitz der Gesellschaft: Hamburg
Registergericht: Amtsgericht Hamburg, HRB 120189
Geschäftsführer: Carsten Bock
Ust-ID: DE279344284
Hier finden Sie unsere handelsrechtlichen Pflichtangaben:
http://www.ng-voice.com/imprint/
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
_______________________________________________
sr-dev mailing list
sr-dev(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev