Hi Arjun That's a nice link. But i think that even with vista you will not be able to reach the 192 target address with your current configuration from that interface unless you configure a gateway on that interface or put a route entry specifying a gateway to reach that network. With vista it looks like it will stop sending on the other interface. Regards Omar Sent from my iPhone On 10/07/2012, at 12:13 AM, Arjun Kamath <junnaonly at gmail.com> wrote: > Hi Omar, > > Thanks for the clear answer. But if that is the case, how are other VoIP clients like Kapanga able to give the user control over selecting the interface? I have attached a screenshot, where there is a dropdown menu letting the user choose the NIC (either 0 or 1) that he wants. > > https://picasaweb.google.com/101582892235327293990/KapangaNICSelect#5763154867739970322 > > If I had to guess, I would say that Kapanga internally changes the route table. But I don't want to assume so much. > > I also found this very informative guide that explains difference between XP and Vista handling. I am currently testing on an XP machine. From this it looks like using a Vista would solve my problem. > > http://blogs.technet.com/b/networking/archive/2009/04/25/source-ip-address-selection-on-a-multi-homed-windows-computer.aspx > > Regards, > Arjun > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 8 Jul 2012 09:28:57 +0300 > From: Arjun Kamath <junnaonly@xxxxxxxxx> > To: pjsip at lists.pjsip.org > Subject: Re: Wrong NIC despite bound_addr (Omar Hussein) > Message-ID: > <CADzHbEXtQktzTzEEu-Wdin09gfCDS6T+MW9hVKEu+q2j-MRrTQ at mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi Omar, > > For a little background, what I would actually like is for the tool to let > the user choose from the various NICs available on the machine, with a drop > down menu and for the tool to use only that NIC to send and receive all > (SIP, SDP, UDP, RTP) messages. With this in mind, I felt that bound_addr > and public_addr would do the job for me. > > Is modifying the route table the only way? I felt that this was more of a > hack than a permanent solution. I would have to change the route settings > on every test machine and other applications would be unnecessarily > affected as well right? > > Regards, > Arjun > > > > Message: 4 > > Date: Sat, 7 Jul 2012 01:12:43 +1000 > > From: Omar Hussein <omarh2812@xxxxxxxxx> > > To: pjsip list <pjsip at lists.pjsip.org> > > Cc: "pjsip at lists.pjsip.org" <pjsip at lists.pjsip.org> > > Subject: Re: Wrong NIC despite bound_addr > > Message-ID: <7FDA71F0-5359-4497-872F-48D979069698 at gmail.com> > > Content-Type: text/plain; charset="us-ascii" > > > > Hi > > > > Since your destination is on different subnet packet must go to default > > gateway. Maybe since default gateway is only configured on 131.x.x.x > > interface windows is using that one. > > > > If you want to send the packet to another gateway on the other subnet you > > can add a static route by using the route add command in a cmd prompt. > > > > Regards > > Omar > > > > > > > > On 07/07/2012, at 12:41 AM, Arjun Kamath <junnaonly at gmail.com> wrote: > > > > > Also, in case it wasn't clear. I am not receiving any replies whatsoever > > on wireshark. I keep sending this mesage > > > > > > Source: 10.52.230.74 > > > Destination: 192.168.212.24 > > > Protocol:SIP > > > Length:585 > > > Info: Request: REGISTER sip:ericssonlte.com > > > > > > > > > On Fri, Jul 6, 2012 at 5:38 PM, Arjun Kamath <junnaonly at gmail.com> > > wrote: > > > Hi, > > > > > > I am developing my tool in Visual Studio 2008 using pjsip 2.0 without > > any video. > > > > > > My machine has 2 NICs as follows: > > > > > > Windows IP Configuration > > > > > > Ethernet adapter Local Area Connection 2: > > > > > > Connection-specific DNS Suffix . : > > > IP Address. . . . . . . . . . . . : 10.52.230.74 > > > Subnet Mask . . . . . . . . . . . : 255.255.255.0 > > > Default Gateway . . . . . . . . . : > > > > > > Ethernet adapter Local Area Connection: > > > > > > Connection-specific DNS Suffix . : > > > IP Address. . . . . . . . . . . . : 131.160.81.63 > > > Subnet Mask . . . . . . . . . . . : 255.255.252.0 > > > Default Gateway . . . . . . . . . : 131.160.80.1 > > > > > > I would like my VoIP application to communicate to the Proxy over > > 10.52.230.74. I have set each of the following to 10.52.230.74 > > > > > > app_config.udp_config.public_addr > > > app_config.udp_config.bound_addr > > > app_config.rtp_config.public_addr > > > app_config.rtp_config.bound_addr > > > > > > What is strange is that on the Wireshark trace, the packet source is > > shown as 10.52.230.74 but it is sent over the 131.160.81.63 interface(I > > have to activate the sniffer on the 131.160.81.63 to see any SIP messages) > > There are no SIP messages sent over 10.52.230.74 interface. > > > > > > I have tried to compare my tool with pjsua_app and things look the same. > > > > > > Any advice? > > > > > > Regards, > > > Arjun > > > > > > > > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120708/52becf5b/attachment-0001.html> > > ------------------------------ > > Message: 2 > Date: Sun, 8 Jul 2012 22:27:35 +1000 > From: Omar Hussein <omarh2812@xxxxxxxxx> > To: pjsip list <pjsip at lists.pjsip.org> > Cc: "pjsip at lists.pjsip.org" <pjsip at lists.pjsip.org> > Subject: Re: Wrong NIC despite bound_addr (Omar Hussein) > Message-ID: <D450BEEF-9D7E-4666-9C85-4E3F1719EFC4 at gmail.com> > Content-Type: text/plain; charset="us-ascii" > > Hi Arjun > > The route table is to let windows tcp/ip know how to reach that destination network of 192.x.x.x. If the destination address was in the same subnet as the 10.x.x.x interface (as determined by the subnet mask) then that interface would be used. But since it's on a different network to both interfaces a default gateway must be used to route the packet. Windows only knows of one gateway which is the one configured on the other interface. You could set the default gateway on the 10.x.x.x interface instead and it will use that one. Or set a static route as i suggested before. > > Regards > Omar > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120710/8fe4feff/attachment.html>
