I have two sites connected via openvpn. Both routers are running shorewall. Behind Network A is a SIP Phone which tries to register with an Asterisk PBX in Network B. I see in the log of the SIP device, that it is sending SIP packets with its internal assigned address 192.168.1.11. The router at Network B logs these SIP packets coming from the external IP address of Router A, and not 192.168.1.11. The strange thing is: other devices in net B have no trouble and are not masqueraded in any way. Could that be a problem with udp vs. tcp? Any advice I can try? Best regards, Michael ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there''s a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you''ll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com
On Wed, 2009-05-13 at 23:25 +0200, Michael Thalmann wrote:> I have two sites connected via openvpn. Both routers are running > shorewall. Behind Network A is a SIP Phone which tries to register > with an Asterisk PBX in Network B. > I see in the log of the SIP device, that it is sending SIP packets > with its internal assigned address 192.168.1.11. The router at Network > B logs these SIP packets coming from the external IP address of Router > A, and not 192.168.1.11. > The strange thing is: other devices in net B have no trouble and are > not masqueraded in any way. Could that be a problem with udp vs. tcp? > Any advice I can try?My guess is that you have a netfilter sip helper on the router for network A. Try removing it and see if that helps. This gets real tricky if you want the single gateway for network A to both help sip packets destined for the wider Internet and also not help packets destined for the other side of the VPN. I don''t know if you can have the sip helper work for only some connections or not. b. ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects