It's possible also to use RTPproxy, because it's designed to work in bridging mode where it can forward the traffic from the internal network towards external one.
Regards On Thu, 2009-08-20 at 12:55 -0600, Darren Sessions wrote: > Media Proxy will work with public internet addresses but, and this is > just my understanding, was not built for use with private IPs let > alone bridging from one subnet to another. > > If your keeping the gateways on a private network is for security > purposes, you may consider giving them public ips on the same subnet > as your opensips and mediaproxy setup, but not specifying a default > gateway. > > Essentially, this would allow the media proxy to do its job relaying > the audio, while still preventing 99% of any unwanted traffic to your > gateways. Couple that will firehol or some other cool iptables app (or > manually configure it if you like) and you'd be sitting pretty secure > I would think. > > Really depends on what you've designed (and why). > > - Darren > > > On Aug 20, 2009, at 12:49 PM, Matthew S. Crocker wrote: > > > > > I understand that OpenSIPS is not a full blown SBC (I can't afford > > an ACMEPacket). Will it perform the functions to proxy the SIP & > > RTP streams (via mediaproxy) between my end users and my internal > > gateway? > > > > At some point I plan on increasing the use of openSIPS to handle > > registration, presence, routing, etc. > > > > -Matt > > > > ----- "Alex Balashov" <[email protected]> wrote: > > > >> From: "Alex Balashov" <[email protected]> > >> To: "OpenSIPS users mailling list" <[email protected]> > >> Sent: Thursday, August 20, 2009 1:58:48 PM GMT -05:00 US/Canada > >> Eastern > >> Subject: Re: [OpenSIPS-Users] SIP Trunking > >> > >> Matthew, > >> > >> Look for the mediaproxy module. > >> > >> That said, do be aware that a proxy is, by definition, not like an > >> SBC. > >> SBCs have many other capabilities a proxy does not; a proxy is a > >> relatively "thin" interoperation layer. > >> > >> Perhaps the recently introduced b2bua module is brought to bear on > >> that > >> somewhat, but classically, OpenSIPS is a proxy. > >> > >> -- Alex > >> > >> Matthew S. Crocker wrote: > >> > >>> Hello, > >>> > >>> I'm brand new to OpenSIPS, just going through the make process now. > >> > >>> > >>> I need to configure OpenSIPS to act like a SBC for some SIP trunks > >> coming off a VoIP switch. Where should I look for > >> Documentation/Examples of a working config? > >>> > >>> Here is my scenario: > >>> > >>> OpenSIPS has two interfaces, private & public. > >>> VoIP Gateway is on private LAN with no gateway configured (it can > >> only talk to local machines, no routing) > >>> > >>> End user has an Asterisk server on a private lan behind their > >> firewall (NAT) > >>> > >>> I need to configure OpenSIPS to listen for SIP messages on :5060 > >> from the end user firewall. It then need to rewrite the SIP message > >> and send it to the Gateway. The Gateway would see the messages > >> coming > >> from the internal IP of the OpenSIPS server. Once all of the SIP > >> messages get processed I then need the OpenSIPS server to proxy the > >> RTP streams (plan on using mediaproxy) between the Asterisk server > >> and > >> VoIP Gateway. > >>> > >>> Any helpful hints on where to look? > >>> > >>> -Matt > >>> > >>> > >> > >> > >> -- > >> Alex Balashov - Principal > >> Evariste Systems > >> Web : http://www.evaristesys.com/ > >> Tel : (+1) (678) 954-0670 > >> Direct : (+1) (678) 954-0671 > >> > >> _______________________________________________ > >> Users mailing list > >> [email protected] > >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users > > > > -- > > Matthew S. Crocker > > President > > Crocker Communications, Inc. > > PO BOX 710 > > Greenfield, MA 01302-0710 > > http://www.crocker.com > > P: 413-746-2760 > > > > > > _______________________________________________ > > Users mailing list > > [email protected] > > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > > > _______________________________________________ > Users mailing list > [email protected] > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > _______________________________________________ Users mailing list [email protected] http://lists.opensips.org/cgi-bin/mailman/listinfo/users
