Indeed, the ports are different, that's why adding received is important in this situation.
While local ip and local port are in most of the cases also unique for devices behind a nat router, it is not 100% true, because there can be many layers of NATs, which can result in seeing same local ip/port for devices. Cheers, Daniel On 14/03/16 13:06, 张顺通 wrote: > source IP is same, But port is different。 > like INVITE sip:Linphone_nat_Ip:Linphone_nat_port;tcp; > > > 2016-03-14 18:26 GMT+08:00 Daniel-Constantin Mierla <mico...@gmail.com > <mailto:mico...@gmail.com>>: > > Adding received information to Path helps to identify properly the > connection to be used. Because both devices are behind the same > NAT, practically they show the same source IP when they send > traffic to server. > > Cheers, > Daniel > > > On 14/03/16 04:05, 张顺通 wrote: >> KA_EDGE have two IP，external public IP and internal IP. >> I add modparam("path", "use_received", 1) and replace add_path() >> to add_path_received() in edge server. >> add modparam("registrar", "path_use_received", 1) in KA_REGISTER >> server. >> >> DB path info <sip:aD15fXXXXXXXXXXXXeEpfqRY=@10.10.10.11 >> <http://10.10.10.11>;lr;ob> >> --> <sip:10.10.10.11;lr;received=sip:42.129.1.1:43640%3Btransport%3Dtcp> >> >> This kind of situation very little，It is not easy to reappear. >> Can you tell me why this situation happen? and Why this change >> can solve the problem? >> >> Thanks for Your Time. >> >> >> >> 2016-03-09 22:37 GMT+08:00 Daniel Tryba <d.tr...@pocos.nl >> <mailto:d.tr...@pocos.nl>>: >> >> On Wed, Mar 09, 2016 at 10:05:11PM +0800, 张顺通 wrote: >> > Yes，Use Path in DB. like >> <sip:XXxXXXXXXXXXX/ogxZg=@10.10.232.29 >> <http://10.10.232.29>;lr;ob> >> > KA_REGISTER wile the path info in DB. >> >> Should not be a problem if you use the use_received options in >> http://kamailio.org/docs/modules/stable/modules/path.html#idp135216 >> and >> >> http://kamailio.org/docs/modules/stable/modules/registrar.html#registrar.p.path_use_received >> >> (and actually add the source as received on the kamailio edge >> server). >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users >> mailing list >> sr-users@lists.sip-router.org >> <mailto:sr-users@lists.sip-router.org> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >> >> >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users@lists.sip-router.org <mailto:sr-users@lists.sip-router.org> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla > http://www.asipto.com > http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - > http://www.linkedin.com/in/miconda > Kamailio World Conference, Berlin, May 18-20, 2016 - > http://www.kamailioworld.com > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > list > sr-users@lists.sip-router.org <mailto:sr-users@lists.sip-router.org> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- Daniel-Constantin Mierla http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com
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