[OpenSIPS-Users] UDP to TCP issue with Re-INVITE
Mickael Hubert
mickael at winlux.fr
Mon Dec 16 11:43:41 EST 2019
Thanks for your help David,
I'm already in debug level:
log_level=4
UAC is not in location table, because it's IP2IP connection (without
registration)
I did another test:
I try to activate "Pp" in dialog creation to send OPTIONS to both sides
(leg A and B)
SIP client (tcp:192.168.10.203) -- my NAT router --> (tcp:2.2.2.2:8060)
opensips (udp:10.1.15.126:5060) --> rest of infra (udp:10.1.15.0/24:5060)
OPTIONS from private interface is sent, but OPTIONS from public interface
can't be sent to natted UAC:
Dec 16 16:52:22 am-frontal1a-test /usr/local/sbin/opensips[2705]:
ERROR:tm:msg_send: send() to 192.168.10.203:5060 for proto tcp/2 failed
Dec 16 16:52:22 am-frontal1a-test /usr/local/sbin/opensips[2705]:
ERROR:tm:t_uac: attempt to send to
'sip:192.168.10.203;transport=tcp;r2=on;lr;did=d9.ed83b676' failed
Dec 16 16:52:43 am-frontal1a-test /usr/local/sbin/opensips[2693]:
ERROR:tm:msg_send: send() to 192.168.10.203:5060 for proto tcp/2 failed
Dec 16 16:52:43 am-frontal1a-test /usr/local/sbin/opensips[2693]:
ERROR:tm:t_uac: attempt to send to
'sip:192.168.10.203;transport=tcp;r2=on;lr;did=d9.ed83b676' failed
My other test (into VPN) works like a charm, but UAC is registered !
Is there a way to keep natted source ip and port to reuse them with initial
request from UAS ?
I use topology_hiding function, and it's not compatible with record_route.
But I tested to deactive TH and active RR, it's exactly the same issue, the
Re-INVITE from UAS is not forwarded to UAC.
thanks
Le lun. 16 déc. 2019 à 15:52, David Villasmil <
david.villasmil.work at gmail.com> a écrit :
> please increase the debug level and paste the log. Also, check what is
> saved as the location for the user.
>
> On Mon, 16 Dec 2019 at 14:48, Mickael Hubert <mickael at winlux.fr> wrote:
>
>> Maybe I founded:
>> I tested a call through Internet connection and I can see (uac natted):
>>
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:proto_tcp_send: *no open tcp connection found*, opening new
>> one, async = 1
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:probe_max_sock_buff: getsockopt: snd is initially 16384
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> INFO:core:probe_max_sock_buff: using snd buffer of 416 kb
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> INFO:core:init_sock_keepalive: TCP keepalive enabled on socket 11
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:tcpconn_async_connect: Polling is overdue
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:tcpconn_async_connect: Create connection for async connect
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:print_ip: tcpconn_new: new tcp connection to: 192.168.10.203
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:tcpconn_new: on port 5060, proto 2
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:proto_tcp_send: Successfully connected from interface
>> 192.168.10.203:5060 to 192.168.10.203:56899!
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:proto_tcp_send: Successfully started async connection
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:tm:insert_timer_unsafe: [0]: 0x7efe91196790 (99)
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:tm:t_relay_to: new transaction fwd'ed
>> Dec 16 15:15:44 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> retcode = 1
>>
>> The re-invite is never forwarded (no trace with sngrep, or classic
>> tcpdump)
>> I don't know why opensips wants use private IP and not natted IP... So...
>>
>> I tested through VPN connection (uac natted):
>>
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:tcp_conn_get: *tcp connection found* (0x7efe9118cf48),
>> acquiring fd
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:tcp_conn_get: c= 0x7efe9118cf48, n=16, Usock=168
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31187]:
>> DBG:core:handle_worker: read response= 7efe9118cf48, 1, fd -1 from 35
>> (31165)
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:tcp_conn_get: after receive_fd: c= 0x7efe9118cf48 n=8 fd=11
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:proto_tcp_send: sending via fd 11...
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:async_tsend_stream: Async successful write from first try on
>> 0x7efe9118cf48
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:core:proto_tcp_send: after write: c= 0x7efe9118cf48 n/len=1014/1014
>> fd=11
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:tm:insert_timer_unsafe: [0]: 0x7efe91196790 (1403)
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> DBG:tm:t_relay_to: new transaction fwd'ed
>> Dec 16 15:37:28 am-frontal1a-test /usr/local/sbin/opensips[31165]:
>> retcode = 1
>>
>> The re-inivte is forwarded correctly !
>>
>> I pretty sure I use the keepalived mecasim ....
>>
>>
>> Le lun. 16 déc. 2019 à 14:27, Mickael Hubert <mickael at winlux.fr> a
>> écrit :
>>
>>> Hi David,
>>> Yes I use it
>>>
>>> if (nat_uac_test("3") && ($Ri == $var(publicip) || $Ri == $var(vpnip)))
>>> {
>>> xlog("L_INFO","$avp(startlog) -- Nated EP Detected\n");
>>> if (force_rport())
>>> {
>>> xlog("L_INFO","$avp(startlog) -- RPORT parameter forced\n");
>>> }
>>> if (fix_nated_contact())
>>> {
>>> xlog("L_INFO","$avp(startlog) -- Nated $rm's Contact Fixed !\n");
>>> }
>>> if (fix_nated_sdp("10"))
>>> {
>>> xlog("L_INFO","$avp(startlog) -- Nated SDP Fixed for $rm\n");
>>> }
>>> }
>>>
>>> Le lun. 16 déc. 2019 à 13:50, David Villasmil <
>>> david.villasmil.work at gmail.com> a écrit :
>>>
>>>> Aré you using nathelper?
>>>>
>>>> On Mon, 16 Dec 2019 at 12:06, Mickael Hubert <mickael at winlux.fr> wrote:
>>>>
>>>>> Hi all,
>>>>> I advanced in my LAB
>>>>> I have this configuration:
>>>>> SIP client (tcp:192.168.10.203) -- my NAT router --> (tcp:2.2.2.2:8060)
>>>>> opensips (udp:10.1.15.126:5060) --> rest of infra (udp:
>>>>> 10.1.15.0/24:5060)
>>>>>
>>>>> When I received the reinvite from "rest of infra" on private interface
>>>>> (10.1.15.126), I could see this log:
>>>>>
>>>>> Dec 16 12:55:27 am-frontal1a-test /usr/local/sbin/opensips[26160]:
>>>>> ERROR:tm:msg_send: send() to 192.168.10.203:5060 for proto tcp/2
>>>>> failed
>>>>> Dec 16 12:55:27 am-frontal1a-test /usr/local/sbin/opensips[26160]:
>>>>> ERROR:tm:t_forward_nonack: sending request failed
>>>>> Dec 16 12:55:27 am-frontal1a-test /usr/local/sbin/opensips[26160]:
>>>>> retcode = -6
>>>>>
>>>>> I don't know why OpenSIPS tries to send the Re-invite to client
>>>>> private IP instead client public port and IP (natted).
>>>>>
>>>>> Do you have an idea please ?
>>>>>
>>>>> thanks
>>>>>
>>>>> Le jeu. 12 déc. 2019 à 11:09, Mickael Hubert <mickael at winlux.fr> a
>>>>> écrit :
>>>>>
>>>>>> Hi all,
>>>>>> I have an issue, opensips doesn't want forward Re-INVITE during UDP
>>>>>> to TCP mapping session.
>>>>>> Customer (NATTED) -- TCP --> (public interface listen tcp:8060)
>>>>>> OpenSIPS (private interface listen udp:5060) --> rest of infrastructure
>>>>>> (udp:5060)
>>>>>>
>>>>>> I can send a call from customer to OpenSIPS (initial INVITE, 200OK,
>>>>>> etc ...).
>>>>>> But when I received Re-INVITE from UAS (sip session timer), OpenSIPS
>>>>>> doesn't forward it to customer.
>>>>>>
>>>>>> You can see the call flow here:
>>>>>> https://photos.app.goo.gl/eUSb5MvBhUfueaoM7
>>>>>> You can see SIP messages and opensips's logs in txt file in attachment
>>>>>>
>>>>>> OpenSIPS handles on it's public interface:
>>>>>> - Topology hiding
>>>>>> - Nat detection
>>>>>>
>>>>>> Thanks a lot for you help !
>>>>>>
>>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at lists.opensips.org
>>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>>
>>>> --
>>>> Regards,
>>>>
>>>> David Villasmil
>>>> email: david.villasmil.work at gmail.com
>>>> phone: +34669448337
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>
>>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
> --
> Regards,
>
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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