On 08/14/2013 04:36 PM, Vitaliy Aleksandrov wrote: > If you won't be able to disable SIP ALG on your router you can fill > $avp(received) manually before calling save(): > $avp(received) = "sip:" + $si + ":" + $sp + ";transport=" + $proto; > > In this case all user location records will have the "received" attribut even > if a UA isn't behind NAT, but I don't > see any problems with that.
This one looks working, but the callee doesn't answer correctly because the TCP isn't correct: Contact:: <sip:528@94.94.X.X:1380;transport=TCP;ob>;q=;expires=294;flags=0x0;cflags=0x0;state=0;socket=<tcp:178.79.X.X:5060>;methods=0x1FDF;received=<sip:94.94.X.X:37030;transport=tcp>;user_agent=<PJSUA v2.1-svn Linux-3.10.5.201/x86_64/glibc-2.17>;reg-id=0 The contact uses a port which isn't translated inside by the router, the received field shows the right one. Should I change the Contact header instead? In case, how can I do that? Cheers, Roberto Fichera. > >> On 08/14/2013 11:51 AM, Roberto Fichera wrote: >>> On 08/14/2013 11:31 AM, Daniel-Constantin Mierla wrote: >>> >>> Hi, >>> >>>> Hello, >>>> >>>> On 8/14/13 11:26 AM, Roberto Fichera wrote: >>>>> On 08/14/2013 11:20 AM, Daniel-Constantin Mierla wrote: >>>>> >>>>> Hi, >>>>> >>>>>> Hello, >>>>>> >>>>>> On 8/14/13 11:16 AM, Roberto Fichera wrote: >>>>>>> On 08/14/2013 10:19 AM, Daniel-Constantin Mierla wrote: >>>>>>> >>>>>>> Hi, >>>>>>> >>>>>>>> Hello, >>>>>>>> >>>>>>>> as you can see in the REGISTER, the phone give a public IP where it >>>>>>>> can be contacted and kamailio tries to >>>>>>>> deliver to >>>>>>>> that address sip:528@94.94.X.X:1274;transport=TCP >>>>>>>> >>>>>>>> REGISTER comes from another port, but that is allowed in SIP. >>>>>>> Yep! That's the problem >>>>>>> >>>>>>>> You should disable stun in the client and let the server care of nat >>>>>>>> traversal. >>>>>>> As already said all client doesn't use any stun- >>>>>> then how they discover the public IP address if they are behind NAT? Or >>>>>> did I misunderstand that they are behind >>>>>> NAT? >>>>> Yes! They are behind NAT! Shouldn't kamailio detect such behaviour so it >>>>> will change the contact header and the other >>>>> fields accordingly using the nat_fix_XXXX functions? >>>> detection of whether a device is behind nat is done based on comparing >>>> source IP of the packet with the IP addresses >>>> in the SIP message. It is no other way from application point of view. >>>> >>>> If you look at the trace, the REGISTER has only public IP addresses, no >>>> private address. Also, the Via header is >>>> perfectly matching the the source IP and port of the packet. >>> Mhhh!!! That's true! >>> >>>> Therefore, if the device is behind a nat in a private network, how does it >>>> discover the public IP or the NAT router? >>>> Is the nat router running a SIP ALG? Can you get the SIP trace on the >>>> device itself? >>> Good question! It's a cisco 877 but the conf doesn't have any kind of SIP >>> related configuration. Does it handle >>> transparently the SIP traffic? >>> >>> Cisco IOS Software, C870 Software (C870-ADVIPSERVICESK9-M), Version >>> 12.4(15)T5, RELEASE SOFTWARE (fc4) >>> Technical Support: http://www.cisco.com/techsupport >>> Copyright (c) 1986-2008 by Cisco Systems, Inc. >>> Compiled Thu 01-May-08 02:31 by prod_rel_team >> Ok! There are two commands to disable it, since it's enabled by default!!! >> >> no ip nat service sip tcp port 5060 >> no ip nat service sip udp port 5060 >> >> I'll test it right now! >>>> Cheers, >>>> Daniel >>>> >>> _______________________________________________ >>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>> 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 >> 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 > 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 http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
