17 Nov
2011
17 Nov
'11
5:56 p.m.
Hello,
On 11/16/11 9:15 AM, Dmitry Petrakoff wrote:
Hi Daniel-Constantin!
Many thanks for your reply
Sorry for the wrong output from DEBUG.
I took it when such directives were set in config:
#disable_tcp=yes
udp_mtu=1300
udp_mtu_try_proto=TCP
Actually, that host 10.198.3.100 works just fine via UDP.
But when those directives were enabled, next INVITE has gone there via
TCP and the error was the same as with Lync.
yes, the question was if the host is
able to take tcp since the
conversion from tcp to udp is done by the sip server automatically when
the size of the message exceeds udp mtu.
If you have another kamailio listening on tcp, are you able to send
traffic to it over tcp?
Cheers,
Daniel
More over. Today I run dispatcher module as "stupid" pinger. And again,
faced with the same error.
Now it is output from kamctl ps:
Process:: ID=0 PID=40677 Type=attendant
Process:: ID=1 PID=40678 Type=udp receiver child=0 sock=1.2.3.4:5060
Process:: ID=2 PID=40679 Type=udp receiver child=1 sock=1.2.3.4:5060
Process:: ID=3 PID=40680 Type=udp receiver child=2 sock=1.2.3.4:5060
Process:: ID=4 PID=40681 Type=udp receiver child=3 sock=1.2.3.4:5060
Process:: ID=5 PID=40682 Type=udp receiver child=0 sock=127.0.0.1:5060
Process:: ID=6 PID=40683 Type=udp receiver child=1 sock=127.0.0.1:5060
Process:: ID=7 PID=40684 Type=udp receiver child=2 sock=127.0.0.1:5060
Process:: ID=8 PID=40685 Type=udp receiver child=3 sock=127.0.0.1:5060
Process:: ID=9 PID=40686 Type=udp receiver child=0 sock=10.200.245.250:5060
Process:: ID=10 PID=40687 Type=udp receiver child=1
sock=10.200.245.250:5060
Process:: ID=11 PID=40688 Type=udp receiver child=2
sock=10.200.245.250:5060
Process:: ID=12 PID=40689 Type=udp receiver child=3
sock=10.200.245.250:5060
Process:: ID=13 PID=40690 Type=slow timer
Process:: ID=14 PID=40691 Type=timer
Process:: ID=15 PID=40692 Type=MI FIFO
Process:: ID=16 PID=40693 Type=ctl handler
Process:: ID=17 PID=40694 Type=TIMER NH
Process:: ID=18 PID=40695 Type=tcp receiver child=0
Process:: ID=19 PID=40696 Type=tcp receiver child=1
Process:: ID=20 PID=40697 Type=tcp receiver child=2
Process:: ID=21 PID=40698 Type=tcp receiver child=3
Process:: ID=22 PID=40699 Type=tcp main process
As you can see, TCP is present and working for receiving. And we were
able to receive INVITE from Lync via TCP.
Now, part of newly added dispatcher functionality:
loadmodule "dispatcher.so"
modparam("dispatcher", "db_url", DBURL);
modparam("dispatcher", "ds_ping_from",
"sip:openser@10.200.245.250");
modparam("dispatcher", "ds_ping_interval", 5);
modparam("dispatcher", "ds_probing_mode", 1);
and table:
mysql> select * from dispatcher;
+----+-------+---------------------------------------+-------+----------+-------+-------------+
| id | setid | destination | flags | priority
| attrs | description |
+----+-------+---------------------------------------+-------+----------+-------+-------------+
| 1 | 1 | sip:10.200.253.186:5068;transport=tcp | 0 | 0
| | Lync-Test |
+----+-------+---------------------------------------+-------+----------+-------+-------------+
corresponding tcp options are:
#disable_tcp=yes
tcp_children=4
and another, probably important, option which I forgot to inform about:
mhomed=1
And what I'm getting.
From syslog
Nov 16 11:07:04 fbsd-kam /usr/local/sbin/kamailio[60981]: ERROR:<core>
[tcp_mai
n.c:2748]: connect 10.200.253.186:5068 failed Socket is not connected
Nov 16 11:07:04 fbsd-kam /usr/local/sbin/kamailio[60981]: ERROR:<core>
[tcp_mai
n.c:2754]: 10.200.253.186:5068: connect& send for 0x28db87f8 failed:
Socket is
not connected (57)
Nov 16 11:07:04 fbsd-kam /usr/local/sbin/kamailio[60981]: ERROR: tm
[../../forwa
rd.h:170]: msg_send: ERROR: tcp_send failed
Nov 16 11:07:04 fbsd-kam /usr/local/sbin/kamailio[60981]: ERROR: tm
[uac.c:496]:
t_uac: Attempt to send to precreated request failed
When run with DEBUG
13(67161) DEBUG: dispatcher [dispatch.c:2305]: probing set #1, URI
sip:10.200.253.186:5068;transport=tcp
13(67161) DEBUG: tm [uac.c:242]: DEBUG:tm:t_uac:
next_hop=<sip:10.200.253.186:5068;transport=tcp>
13(67161) DEBUG: tm [uac.c:181]: DEBUG: dlg2hash: 62915
13(67161) DEBUG:<core> [tcp_main.c:1824]: tcp_send: no open tcp
connection found, opening new one
13(67161) DEBUG:<core> [ip_addr.c:247]: tcpconn_new: new tcp
connection: 10.200.253.186
13(67161) DEBUG:<core> [tcp_main.c:1081]: tcpconn_new: on port 5068, type 2
13(67161) DEBUG:<core> [tcp_main.c:1382]: tcpconn_add: hashes: 3509:0:0, 4
13(67161) ERROR:<core> [tcp_main.c:2748]: connect 10.200.253.186:5068
failed Socket is not connected
13(67161) ERROR:<core> [tcp_main.c:2754]: 10.200.253.186:5068: connect
& send for 0x28dbc308 failed: Socket is not connected (57)
13(67161) DEBUG:<core> [tcp_main.c:2955]: tcpconn_chld_put: destroying
connection 0x28dbc308 (4, -1) flags 0060
13(67161) ERROR: tm [../../forward.h:170]: msg_send: ERROR: tcp_send failed
Other options from config:
fork=yes
children=4
user="kamailio"
group="kamailio"
server_header="DPRS's SIP proxy"
server_signature=no
So as you can see, here is the same error.
Many thanks in advance!
WBR
Dimon
On 16.11.11 11:46, Daniel-Constantin Mierla wrote:
--
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda
Hello,
you haven't disabled tcp support, right? Can you do 'kamctl ps' and
see if you have tcp workers?
I see the error is related to 10.198.3.100:5060 :
10(36629) ERROR:<core> [tcp_main.c:2748]: connect 10.198.3.100:5060
failed Socket is not connected
What is listening on this ip and port? In drouting table you have
10.198.3.100:5068;transport=tcp -- a different port.
Then, do you need to enable and play with mtu params? This is for
auto-switching from UDP to TCP when size of SIP message exceeds
udp_mtu value in bytes, done by SIP server, but if the other party is
not listening on tcp, then it won't work (reason is disabled by
default) -- note that this switching will be done for all sip messages.
Cheers,
Daniel
On 11/15/11 11:43 AM, Dmitry Petrakoff wrote:
> Hi List!
>
> I'm running Kamailio for about 1 year without any serious problems.
> When it works with UDP only, it runs perfectly well for us. Without any
> major issues.
>
> But now we have a customer who wants to connect Lync to our network.
> Unfortunately, Lync does not support UDP for SIP signalling, so we tried
> to teach kamailio to send SIP messages via TCP.
> And getting strange error:
>
> 10(36629) DEBUG: tm [t_reply.c:659]: DEBUG: reply sent out.
> buf=0x832c7ac: SIP/2.0 100 trying -..., shmem=0x28d97c7c: SIP/2.0 100
> trying -
> 10(36629) DEBUG: tm [t_reply.c:669]: DEBUG: _reply_light: finished
> 10(36629) DEBUG:<core> [forward.c:213]: DEBUG: get_out_socket: socket
> determined: 0x833ddc0
> 10(36629) DEBUG:<core> [msg_translator.c:457]: clen_builder:
> content-length: 553 (553)
> 10(36629) DEBUG:<core> [msg_translator.c:204]:
> check_via_address(10.200.245.200, 10.200.245.200, 0)
> 10(36629) DEBUG:<core> [tcp_main.c:1824]: tcp_send: no open tcp
> connection found, opening new one
> 10(36629) DEBUG:<core> [ip_addr.c:247]: tcpconn_new: new tcp
> connection: 10.198.3.100
> 10(36629) DEBUG:<core> [tcp_main.c:1081]: tcpconn_new: on port 5060,
> type 2
> 10(36629) DEBUG:<core> [tcp_main.c:1382]: tcpconn_add: hashes: 0:0:0, 1
> 10(36629) ERROR:<core> [tcp_main.c:2748]: connect 10.198.3.100:5060
> failed Socket is not connected
> 10(36629) ERROR:<core> [tcp_main.c:2754]: 10.198.3.100:5060: connect&
> send for 0x28d988ac failed: Socket is not connected (57)
> 10(36629) DEBUG:<core> [tcp_main.c:2955]: tcpconn_chld_put: destroying
> connection 0x28d988ac (1, -1) flags 0060
> 10(36629) ERROR: tm [../../forward.h:170]: msg_send: ERROR: tcp_send
> failed
>
> We tested two different variants: one when defined Lync in dr_gateways
> table as 10.198.3.100:5068;transport=tcp
>
> And then, tried global options
> udp_mtu=1300
> udp_mtu_try_proto=TCP
>
> As soon as these options were enabled, all other gateways became
> unreachable with the same error as above.
>
> Could you please to point me out, where I'm wrong?
>
> fbsd-kam# /usr/local/sbin/kamailio -V
> version: kamailio 3.1.5 (i386/freebsd) ec672a
> flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS,
> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC,
> DBG_QM_MALLOC, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER,
> USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
> MAX_URI_SIZE 1024, BUF_SIZE 65535, PKG_SIZE 4MB
> poll method support: poll, select, kqueue.
> id: ec672a
> compiled on 11:02:58 Nov 15 2011 with gcc 4.2.1
>
> FreeBSD fbsd-kam.dprs-consulting.com 8.2-RELEASE-p2 FreeBSD
> 8.2-RELEASE-p2 #0: Sun Jul 3 17:49:13 GMT 2011
> root@fbsd-kam.dprs-consulting.com:/usr/obj/usr/src/sys/GENERIC i386
>
> Routing script could be sent on request.
>
> Thank you very much!
>
> WBR
> Dimon
>
>
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