Because both kamailio and asterisk use the same db table for authentication, see the auth_db module parameters in kamailio config.
The REGISTER request from sip user is authenticated by kamailio using auth_db module and upon success kamailio generates REGISTER request back to asterisk (using the credentials sent by sip user for authentication with kamailio), this request is now authenticated by asterisk using realtime sip users interface. Thank you. On Sun, Nov 16, 2014 at 2:53 PM, Mahmoud Ramadan Ali < cisco.and.more.b...@gmail.com> wrote: > Hi Muhammad, > If the users MUST authenticate to Kamailio first,This means that Kamailio > should be aware of the SIP users exist in the Asterisk DB to be able to > authenticate them and NOT receive 401 Unauthorized error message from > Kamailio. > My question now might be simple but it a point of confusion to me and it > is how to tell Kamailio about the SIP users in the Asterisk DB ?! > > Best Regards, > > > On Sun, Nov 16, 2014 at 3:01 PM, Muhammad Shahzad <shaherya...@gmail.com> > wrote: > >> This seems to be fine. The user MUST authenticate to Kamailio, only then >> Kamailio will create REGISTER request that is send to asterisk. That's the >> key security feature behind the idea. >> >> Look at the register architecture diagram, >> >> >> http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb#registration >> >> Thank you. >> >> >> >> On Sat, Nov 15, 2014 at 10:31 PM, Mahmoud Ramadan Ali < >> cisco.and.more.b...@gmail.com> wrote: >> >>> Hi Dears, >>> I'm trying to configure Kamailio as SBC in multi home mode for Asterisk >>> by authenticating the inbound SIP registration requests,i'm following this >>> tutorial >>> http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb >>> to achieve this goal. i have modified the necessary changes like the >>> Asterisk DB URL and the SIP table name and Username and password column and >>> verified the connection. >>> >>> My topology like this *Asterisk (192.168.100.10) >>> <----Internal:192.168.100.1---->Kamailio<---External:192.168.50.1-----> SIP >>> Phone (192.168.50.2)* >>> But when trying to register a SIP phone Kamailio does NOT forward the >>> authentication request to Asterisk and sends 401 Unauthorized error >>> message.I've attached my config file if any one wants to check it and >>> thanks in advance. >>> Best Regards >>> >>> >>> U 192.168.50.2:37297 -> 192.168.50.1:5060 >>> REGISTER sip:192.168.50.1;transport=UDP SIP/2.0. >>> Via: SIP/2.0/UDP 192.168.50.2:37297 >>> ;branch=z9hG4bK-d8754z-a46e0c7c9d98fe52-1---d8754z-;rport;transport=UDP. >>> Max-Forwards: 70. >>> Contact: <sip:1001@192.168.50.2:37297 >>> ;rinstance=1d7c44dbcb8a7a2f;transport=UDP>. >>> To: <sip:1001@192.168.50.1;transport=UDP>. >>> From: <sip:1001@192.168.50.1;transport=UDP>;tag=1d222e19. >>> Call-ID: NTc2NDBjMGQ2YWFmZjdmNWI0MzVmN2Y4NzYyODJlMTc.. >>> CSeq: 2 REGISTER. >>> Expires: 70. >>> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, >>> SUBSCRIBE. >>> Supported: replaces, norefersub, extended-refer, timer, >>> X-cisco-serviceuri. >>> User-Agent: Z 3.2.21357 r21367. >>> Authorization: Digest >>> username="1001",realm="192.168.50.1",nonce="VGfAuFRnv4wMvoTG7wA9tqYD9fgZDe3D",uri="sip:192.168.50.1;transport=UDP",response="8bbd01d879250585eafee4f510689f73",algorithm=MD5. >>> Allow-Events: presence, kpml. >>> Content-Length: 0. >>> # >>> U 192.168.50.1:5060 -> 192.168.50.2:37297 >>> SIP/2.0 401 Unauthorized. >>> Via: SIP/2.0/UDP 192.168.50.2:37297 >>> ;branch=z9hG4bK-d8754z-a46e0c7c9d98fe52-1---d8754z-;rport=37297;transport=UDP. >>> To: <sip:1001@192.168.50.1 >>> ;transport=UDP>;tag=b27e1a1d33761e85846fc98f5f3a7e58.fe8b. >>> From: <sip:1001@192.168.50.1;transport=UDP>;tag=1d222e19. >>> Call-ID: NTc2NDBjMGQ2YWFmZjdmNWI0MzVmN2Y4NzYyODJlMTc.. >>> CSeq: 2 REGISTER. >>> WWW-Authenticate: Digest realm="192.168.50.1", >>> nonce="VGfAuFRnv4wMvoTG7wA9tqYD9fgZDe3D". >>> Server: kamailio (4.1.6 (i386/linux)). >>> Content-Length: 0. >>> >>> _______________________________________________ >>> 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 > >
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