sr-users June 2021

sr-users@lists.kamailio.org

48 participants
61 discussions

Possible memory leak on 5.5.x (new)?
by George Diamantopoulos 25 Jun '21

25 Jun '21

Hello all, I'm still investigating the (most likely non-kamailio-related) memory leak of my previous message to the list, there have been no developments so far. I'll update if anything changes. This concerns a new finding which seems to affect kamailio 5.5.x. I have two kamailio instances receiving the same traffic via round-robin. I upgraded only one of them to 5.5.1 and left the other to 5.4.6 as I feared of any issues arising. I was lucky to do so, because with identical configuration, 5.5.x seems to run out of SHM very quickly. Here are links to graphs produced by our monitoring system: Old kamailio (no memory leak): https://pasteboard.co/K8fVBiD.png New kamailio (possible leak): https://pasteboard.co/K8fVS9N.png The configuration uses mtree, htable, vars and vns extensively. Has anyone come across anything similar? Let me know if I can provide any further information to help disect this. Thanks! BR, George

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rr module: record_route_advertised_address()/record_route_preset() do ignore custom user AVP
by Valentin Christoph 25 Jun '21

25 Jun '21

Hi, Maybe a discussion for the DEV mailing list???? Want to overwrite the FQDN by a NATed IP address in the topmost Record-Route of an outgoing INVITE request. Cannot set the advertise parameter (this must tell the FQDN for all other situations), only in some special situations I want to overwrite the FQDN in Record-Route. My solution would be to implement in the Kamailio source code (rr module) that not only record_route() uses the get_custom_user() function, but the other both functions uses it, too. Any better proposals? All the best Christoph

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Kamailio $Rp variable showing wrong port
by Shahid Hussain 25 Jun '21

25 Jun '21

Hi, I have configured the dispatcher default socket as below IP , the expectation here is that kamailio should send all traffic from this IP (port will be ephemeral) over TCP. modparam("dispatcher", "ds_default_socket", "tcp:172.27.45.219:5060") This system also listens on port 8080 which is meant for websocket communication (dispatcher communication is over non websocket). Kamailio is sending an OPTION message to dispatcher IP over TCP on 5060 and getting 200 OK response but Kamailio considering the response is on websocket port 8080 ,$Rp value is 8080. onreply_route { if (($Rp == 8080 ) && !(proto == WS)) { xlog("L_WARN", "SIP response received on $Rp protocol:proto RIP:$Ri SIP:$si method:$rm cid:$ci replystatus:$rs len:$ml\n"); xlog("L_WARN", "SIP message received: $mb\n"); drop; } ..... .... } Following is the output of above logs: Jun 24 15:10:08 localhost /usr/sbin/kamailio[6223]: WARNING: {2 10 OPTIONS 1ab6573a4640823b-6209(a)172.27.45.198} <script>: SIP response received on 8080 protocol:tcp RIP:172.27.45.219 SIP:172.27.44.125 method:OPTIONS cid:1ab6573a4640823b-6209@172.27.45.198 replystatus:200 len:416 Jun 24 15:10:08 localhost /usr/sbin/kamailio[6223]: WARNING: {2 10 OPTIONS 1ab6573a4640823b-6209(a)172.27.45.198} <script>: SIP message received: SIP/2.0 200 OK#015#012Via: SIP/2.0/TCP 172.27.45.198:5060;branch=z9hG4bK4526.92b79f34000000000000000000000000.0;received=172.27.45.219#015#012From: <sip:dispatcher@localhost>;tag=1ae6c95d92f9ea9ce927f715de5c48c8-eb141029#015#012To: <sip:172.27.44.125:5060;transport=tcp>;tag=a9d542e0#015#012Call-ID: 1ab6573a4640823b-6209(a)172.27.45.198#015#012CSeq: 10 OPTIONS#015#012Allow: INVITE, ACK, BYE, OPTIONS, CANCEL, INFO, UPDATE, NOTIFY#015#012Content-Length: 0 Also I have attached a pcap. Dispatcher.list configuration: 1 sip:172.27.44.125:5060;transport=tcp 0 0 duid=sample-cas;maxload=1000 Thanks, Shahid

3 10

S-CSCF and I-CSCF
by Jayanth Acharya 24 Jun '21

24 Jun '21

Hi, Have found example configuration for S-CSCF, I-CSCF and P-CSCF in Kamailio repository, and a S-CSCF module for the registered user data, but no recent updates. Wondering if anyone can share insights into how widely it has been used, or interops done in say telco networks with it ? Does it handle third-party registrations, is it actually able to do a Cx interaction with HSS ? Finally, how have these components that make up the IMS-core from SIP signaling standpoint, been tested ? Are there any signaling only test harnesses ? cheers, Jay

2 1

Errors after upgrade to 5.5
by Daniel W. Graham 23 Jun '21

23 Jun '21

Receiving constant errors for all functions after upgrade to 5.5, any change that could have caused this? ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (16)] cfg [/usr/local/etc/kamailio/kamailio.cfg:968] took too long [1251 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (16)] cfg [/usr/local/etc/kamailio/kamailio.cfg:988] took too long [1309 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (16)] cfg [/usr/local/etc/kamailio/kamailio.cfg:1038] took too long [1321 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (5)] cfg [/usr/local/etc/kamailio/kamailio.cfg:452] took too long [1342 us] ERROR: <core> [db_query.c:68]: db_do_submit_query(): alert - query execution too long [1493 us] for [select `password`,`id` from `subscriber` where `username`='x'] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [www_authenticate (26)] cfg [/usr/local/etc/kamailio/kamailio.cfg:951] took too long [1667 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (16)] cfg [/usr/local/etc/kamailio/kamailio.cfg:968] took too long [1694 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (16)] cfg [/usr/local/etc/kamailio/kamailio.cfg:988] took too long [1817 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (16)] cfg [/usr/local/etc/kamailio/kamailio.cfg:1038] took too long [1835 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [corefunc (5)] cfg [/usr/local/etc/kamailio/kamailio.cfg:452] took too long [1869 us] ERROR: <core> [core/action.c:1598]: run_actions(): alert - action [www_authenticate (26)] cfg [/usr/local/etc/kamailio/kamailio.cfg:951] took too long [1405 us] ……. -dan

2 4

AVPs in Switch/Case
by Joel Serrano 22 Jun '21

22 Jun '21

Hi guys, Quick question, are AVPs valid in "switch" as "case"'s? Example: $avp(var1) = "101"; $avp(var2) = "201"; switch($rU) { case "$avp(var1)": ... break; case "$avp(var2)": ... break; default: send_reply("403", "Forbidden"); exit; } For some reason I can't get the case to match, and I'm thinking it's not using the actual value of $avp(var1) and instead it's using literally "$avp(var1)" as a string. NOTE: I also tried without putting the AVPs in quotes, but Kamailio complains and doesn't start. Is this doable or do I need to use if..else if..else if..else for this? Thanks, Joel.

3 3

Web Sockets connection error: bad request, state=7, error=4
by Peter Manley 22 Jun '21

22 Jun '21

Hello, I'm using Kamailio 5.3.2 and am trying to establish a WebRTC connection for using SIP through Kamailio on port 8089. I am getting the following error in the Syslog: Jun 22 09:20:38 VRTPENGINE kamailio[43050]: ERROR: <core> [core/tcp_read.c:1535]: tcp_read_req(): bad request, state=7, error=4 buf:#012GET /ws HTTP/1.1#015#012Host: rtpengine.kombea.io:8089#015#012Connection: Upgrade#015#012Pragma: no-cache#015#012Cache-Control: no-cache#015#012User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.106 Safari/537.36#015#012Upgrade: websocket#015#012Origin: https://vicidev.kombea.io#015#012Sec-WebSocket-Version: 13#015#012Accept-Encoding: gzip, deflate, br#015#012Accept-Language: en-US,en;q=0.9#015#012Sec-WebSocket-Key: 1Pda50NxHxMenZaMW7cUkA==#015#012Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits#015#012Sec-WebSocket-Protocol: sip#015#012#015#012#012parsed:#012GET /ws HTTP/1.1#015#012Host: rtpengine.kombea.io:8089#015#012Connection: Upgrade#015#012Pragma: no-cache#015#012Cache-Control: no-cache#015#012User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.106 Safari/537.36#015#012Upgrade: websocket#015#012Origin: https://vicidev.kombea.io#015#012Sec-WebSocket-Version: 13#015#012Accept-Encoding: gzip, deflate, br#015#012Accept-Language: en-US,en;q=0.9#015#012Sec-WebSocket-Key: 1Pda50NxHxMenZaMW7cUkA==#015#012Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits#015#012Sec-WebSocket-Protocol: sip#015#012#015#012 Any idea on what would cause this? Thanks Peter H. Manley, Ph.D. Chief Software Architect KomBea Corporation 3400 North Ashton Blvd, Suite 470<https://urldefense.proofpoint.com/v2/url?u=https-3A__maps.google.com_-3Fq-3…> Lehi, Utah 84043<https://urldefense.proofpoint.com/v2/url?u=https-3A__maps.google.com_-3Fq-3…> www.kombea.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kombea.com_&d=DwMF-…> Office:+1.801.610.5808 Mobile +1.801.243.7773

2 2

execute callback every X minutes mid call
by Avremy Cohen 22 Jun '21

22 Jun '21

Hi I am trying to execute code every X min in active calls and I cant seem to find any way to do this. I basically have a function that checks if the user has balance and permission to carry on the call and the callback should trigger it every X mins. The call_control module doesnt work for me since A. It doesn't trigger a function it just ends the callback B. it uses an external application to calculate it any advice is appreciated Avi

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Re: [SR-Users] Unable to establish TCP connection with Kamailio
by Peter Manley 17 Jun '21

17 Jun '21

Hello Ovidiu, Interestingly, that fixed the problem. I can now continue to make progress. Why does not forking and/or logging to stderr cause this to happen? Thank you! Regards, Peter Manley Ovidiu Sas osas at voipembedded.com<mailto:sr-users%40lists.kamailio.org?Subject=Re%3A%20%5BSR-Users%5D%20Unable%20to%20establish%20TCP%20connection%20with%20Kamailio&In-Reply-To=%3CCAND0LkvxyxE%3D5CPxZTe-Em43X6E5nep6z9n7a8f1zo3YbKksMw%40mail.gmail.com%3E> Thu Jun 17 23:05:14 CEST 2021 * Previous message (by thread): [SR-Users] Unable to establish TCP connection with Kamailio<https://lists.kamailio.org/pipermail/sr-users/2021-June/112759.html> * Messages sorted by: [ date ]<https://lists.kamailio.org/pipermail/sr-users/2021-June/date.html#112760> [ thread ]<https://lists.kamailio.org/pipermail/sr-users/2021-June/thread.html#112760> [ subject ]<https://lists.kamailio.org/pipermail/sr-users/2021-June/subject.html#112760> [ author ]<https://lists.kamailio.org/pipermail/sr-users/2021-June/author.html#112760> ________________________________ It seems that you have fork set to no, Let kamailio fork and collect logs via syslog (not via stderror). -ovidiu On Thu, Jun 17, 2021 at 16:26 Peter Manley <peter.manley at kombea.com<https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>> wrote: > Hello, > > > > I'm running Kamailio Version 5.3.2 on Ubuntu 20.04. Here my build > information: > > > > version: kamailio 5.3.2 (x86_64/linux) > > flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, > DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, > F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, > USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, > HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED > > ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, > BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB > > poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. > > id: unknown > > compiled with gcc 9.2.1 > > > > I have the following configuration set in my kamalio.cfg file: > > > > ##!define WITH_MYSQL > > ##!define WITH_AUTH > > ##!define WITH_USRLOCDB > > ##!define WITH_TLS > > ##!define WITH_HOMER > > ##!define WITH_WEBSOCKETS > > ##!define WITH_ANTIFLOOD > > ##!define WITH_IPV6 > > ##!define WITH_BRIDGE_ON_FAIL > > ##!define WITH_LOCALHOST_WS > > ##!define WITH_LOCALHOST_SIP > > > > #!substdef "!MY_SIP_PORT!5060!g" > > #!substdef "!MY_SIPS_PORT!5061!g" > > #!substdef "!MY_WS_PORT!8088!g" > > #!substdef "!MY_WSS_PORT!8089!g" > > > > #!substdef "!MY_LOG_FACILITY!LOG_DAEMON!g" > > > > #!substdef "!MY_IP4_ADDR!172.16.0.57!g" > > #!substdef "!IP4_LOCALHOST!127.0.0.1!g" > > #!substdef "!MY_WS4_ADDR!tcp:MY_IP4_ADDR:MY_WS_PORT!g" > > #!substdef "!MY_WSS4_ADDR!tls:MY_IP4_ADDR:MY_WSS_PORT!g" > > #!substdef "!LOCALHOST_WS4_ADDR!tcp:IP4_LOCALHOST:MY_WS_PORT!g" > > #!substdef "!LOCALHOST_WSS4_ADDR!tls:IP4_LOCALHOST:MY_WSS_PORT!g" > > > > #!ifdef WITH_IPV6 > > #!substdef "!MY_IP6_ADDR![fe80::d6e4:2f5f:e5b7:7dff]!g" > > #!substdef "!IP6_LOCALHOST![::1]!g" > > #!substdef "!MY_WS6_ADDR!tcp:MY_IP6_ADDR:MY_WS_PORT!g" > > #!substdef "!MY_WSS6_ADDR!tls:MY_IP6_ADDR:MY_WSS_PORT!g" > > #!substdef "!LOCALHOST_WS6_ADDR!tcp:IP6_LOCALHOST:MY_WS_PORT!g" > > #!substdef "!LOCALHOST_WSS6_ADDR!tls:IP6_LOCALHOST:MY_WSS_PORT!g" > > #!endif > > > > #!substdef "!MY_DOMAIN!rtpengine.kombea.io!g" > > debug=10 // debug level (cmd line: -dddddddddd) > > children=4 > > #fork=yes > > force_rport=yes // Add recieved port to VIA > > #log_stderror=no // (cmd line: -E) > > > > // Uncomment these lines to enter debugging mode > > fork=no > > log_stderror=yes > > > > check_via=no // (cmd. line: -v) > > dns=no // (cmd. line: -r) > > rev_dns=no // (cmd. line: -R) > > > > log_facility=MY_LOG_FACILITY > > > > // Define the listening ports and addresses > > port=MY_SIP_PORT > > tls_port_no=MY_SIPS_PORT > > > > > > // Define TCP parameters > > tcp_children=4 > > tcp_no_connect=no > > tcp_rd_buf_size=16384 > > tcp_max_connections=2048 > > tcp_connection_lifetime=3605 > > disable_tcp=no > > #!ifdef WITH_TLS > > enable_tls=yes > > #!endif > > > > > > listen=MY_IP4_ADDR > > #!ifdef WITH_LOCALHOST_SIP > > listen=IP4_LOCALHOST > > #!endif > > #!ifdef WITH_IPV6 > > listen=MY_IP6_ADDR > > #!ifdef WITH_LOCALHOST_SIP > > listen=IP6_LOCALHOST > > #!endif > > #!endif > > > > #!ifdef WITH_WEBSOCKETS > > listen=MY_WS4_ADDR > > #!ifdef WITH_LOCALHOST_WS > > listen=LOCALHOST_WS4_ADDR > > #!endif > > #!ifdef WITH_IPV6 > > listen=MY_WS6_ADDR > > #!ifdef WITH_LOCALHOST_WS > > listen=LOCALHOST_WS6_ADDR > > #!endif > > #!endif > > #!ifdef WITH_TLS > > listen=MY_WSS4_ADDR > > #!ifdef WITH_LOCALHOST_WS > > listen=LOCALHOST_WSS4_ADDR > > #!endif > > #!ifdef WITH_IPV6 > > listen=MY_WSS6_ADDR > > #!ifdef WITH_LOCALHOST_WS > > listen=LOCALHOST_WSS6_ADDR > > #!endif > > #!endif > > #!endif > > #!endif > > > > force_rport=yes // Add received port to VIA > > > > loadmodule "pv.so" // Pseudo-Variable support > > loadmodule "xlog.so" // Formatted logging support > > loadmodule "sl.so" // Stateless request handling > > loadmodule "siputils.so" // SIP utility helpers > > loadmodule "sanity.so" // Sanity check > > loadmodule "maxfwd.so" // Support for Max-Forward header > > loadmodule "textops.so" // Text operations on SIP messages > > loadmodule "textopsx.so" // Extended Text operations on SIP messages > > loadmodule "sdpops.so" // SDP operations > > loadmodule "nathelper.so" // NAT traversal helpers > > loadmodule "rr.so" // Record Route handling > > loadmodule "outbound.so" // Outbound support > > loadmodule "path.so" // Path handling > > > > #!ifdef WITH_TLS > > loadmodule "tls.so" // TLS Support > > #!endif > > > > #!ifdef WITH_WEBSOCKETS > > loadmodule "xhttp.so" // XHTTP support > > loadmodule "websocket.so" // WebSocket support > > #!endif > > loadmodule "rtpengine.so" // RTPEngine control > > > > #!ifdef WITH_DEBUG > > loadmodule "debugger.so" > > #!endif > > > > When I start Kamailio, I see the following in the output to stderr: > > > > Listening on > > udp: 172.16.0.57:5060 > > tcp: 172.16.0.57:5060 > > Aliases: > > tcp: VRTPENGINE:5060 > > udp: VRTPENGINE:5060 > > > > WARNING: no fork mode > > 0(6299) INFO: <core> [core/tcp_main.c:5042]: init_tcp(): using epoll_lt > as the io watch method (auto detected) > > > > Here's the problem: > > > > When I connect via UDP, everything works fine. I can connect and see all > SIP traffic. > > > > However, if I try to connect via TCP, I see the initial SYN packet in > attempting to establish a connection. > > > > Kamailio responds with an [RST,ACK] message and the TCP connection is > never established. No further TCP traffic is sent. > > > > Any ideas on what I'm doing wrong? > > <https://www.google.com/maps/search/3400%0D%0A+North+Ashton+Blvd,+Suite+470+…> > > > > *Peter H. Manley, Ph.D.* > > Chief Software Architect > > KomBea Corporation > > 3400 North Ashton Blvd, Suite 470 > <https://urldefense.proofpoint.com/v2/url?u=https-3A__maps.google.com_-3Fq-3…> > > Lehi, Utah 84043 > <https://urldefense.proofpoint.com/v2/url?u=https-3A__maps.google.com_-3Fq-3…> > > www.kombea.com<http://www.kombea.com> > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kombea.com_&d=DwMF-…> > > > > Office:+1.801.610.5808 > > Mobile +1.801.243.7773 > > > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > * sr-users at lists.kamailio.org<https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> > Important: keep the mailing list in the recipients, do not reply only to > the sender! > Edit mailing list options or unsubscribe: > * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > -- VoIP Embedded, Inc. http://www.voipembedded.com<http://www.voipembedded.com/>

2 1

Unable to establish TCP connection with Kamailio
by Peter Manley 17 Jun '21

17 Jun '21

Hello, I'm running Kamailio Version 5.3.2 on Ubuntu 20.04. Here my build information: version: kamailio 5.3.2 (x86_64/linux) flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: unknown compiled with gcc 9.2.1 I have the following configuration set in my kamalio.cfg file: ##!define WITH_MYSQL ##!define WITH_AUTH ##!define WITH_USRLOCDB ##!define WITH_TLS ##!define WITH_HOMER ##!define WITH_WEBSOCKETS ##!define WITH_ANTIFLOOD ##!define WITH_IPV6 ##!define WITH_BRIDGE_ON_FAIL ##!define WITH_LOCALHOST_WS ##!define WITH_LOCALHOST_SIP #!substdef "!MY_SIP_PORT!5060!g" #!substdef "!MY_SIPS_PORT!5061!g" #!substdef "!MY_WS_PORT!8088!g" #!substdef "!MY_WSS_PORT!8089!g" #!substdef "!MY_LOG_FACILITY!LOG_DAEMON!g" #!substdef "!MY_IP4_ADDR!172.16.0.57!g" #!substdef "!IP4_LOCALHOST!127.0.0.1!g" #!substdef "!MY_WS4_ADDR!tcp:MY_IP4_ADDR:MY_WS_PORT!g" #!substdef "!MY_WSS4_ADDR!tls:MY_IP4_ADDR:MY_WSS_PORT!g" #!substdef "!LOCALHOST_WS4_ADDR!tcp:IP4_LOCALHOST:MY_WS_PORT!g" #!substdef "!LOCALHOST_WSS4_ADDR!tls:IP4_LOCALHOST:MY_WSS_PORT!g" #!ifdef WITH_IPV6 #!substdef "!MY_IP6_ADDR![fe80::d6e4:2f5f:e5b7:7dff]!g" #!substdef "!IP6_LOCALHOST![::1]!g" #!substdef "!MY_WS6_ADDR!tcp:MY_IP6_ADDR:MY_WS_PORT!g" #!substdef "!MY_WSS6_ADDR!tls:MY_IP6_ADDR:MY_WSS_PORT!g" #!substdef "!LOCALHOST_WS6_ADDR!tcp:IP6_LOCALHOST:MY_WS_PORT!g" #!substdef "!LOCALHOST_WSS6_ADDR!tls:IP6_LOCALHOST:MY_WSS_PORT!g" #!endif #!substdef "!MY_DOMAIN!rtpengine.kombea.io!g" debug=10 // debug level (cmd line: -dddddddddd) children=4 #fork=yes force_rport=yes // Add recieved port to VIA #log_stderror=no // (cmd line: -E) // Uncomment these lines to enter debugging mode fork=no log_stderror=yes check_via=no // (cmd. line: -v) dns=no // (cmd. line: -r) rev_dns=no // (cmd. line: -R) log_facility=MY_LOG_FACILITY // Define the listening ports and addresses port=MY_SIP_PORT tls_port_no=MY_SIPS_PORT // Define TCP parameters tcp_children=4 tcp_no_connect=no tcp_rd_buf_size=16384 tcp_max_connections=2048 tcp_connection_lifetime=3605 disable_tcp=no #!ifdef WITH_TLS enable_tls=yes #!endif listen=MY_IP4_ADDR #!ifdef WITH_LOCALHOST_SIP listen=IP4_LOCALHOST #!endif #!ifdef WITH_IPV6 listen=MY_IP6_ADDR #!ifdef WITH_LOCALHOST_SIP listen=IP6_LOCALHOST #!endif #!endif #!ifdef WITH_WEBSOCKETS listen=MY_WS4_ADDR #!ifdef WITH_LOCALHOST_WS listen=LOCALHOST_WS4_ADDR #!endif #!ifdef WITH_IPV6 listen=MY_WS6_ADDR #!ifdef WITH_LOCALHOST_WS listen=LOCALHOST_WS6_ADDR #!endif #!endif #!ifdef WITH_TLS listen=MY_WSS4_ADDR #!ifdef WITH_LOCALHOST_WS listen=LOCALHOST_WSS4_ADDR #!endif #!ifdef WITH_IPV6 listen=MY_WSS6_ADDR #!ifdef WITH_LOCALHOST_WS listen=LOCALHOST_WSS6_ADDR #!endif #!endif #!endif #!endif force_rport=yes // Add received port to VIA loadmodule "pv.so" // Pseudo-Variable support loadmodule "xlog.so" // Formatted logging support loadmodule "sl.so" // Stateless request handling loadmodule "siputils.so" // SIP utility helpers loadmodule "sanity.so" // Sanity check loadmodule "maxfwd.so" // Support for Max-Forward header loadmodule "textops.so" // Text operations on SIP messages loadmodule "textopsx.so" // Extended Text operations on SIP messages loadmodule "sdpops.so" // SDP operations loadmodule "nathelper.so" // NAT traversal helpers loadmodule "rr.so" // Record Route handling loadmodule "outbound.so" // Outbound support loadmodule "path.so" // Path handling #!ifdef WITH_TLS loadmodule "tls.so" // TLS Support #!endif #!ifdef WITH_WEBSOCKETS loadmodule "xhttp.so" // XHTTP support loadmodule "websocket.so" // WebSocket support #!endif loadmodule "rtpengine.so" // RTPEngine control #!ifdef WITH_DEBUG loadmodule "debugger.so" #!endif When I start Kamailio, I see the following in the output to stderr: Listening on udp: 172.16.0.57:5060 tcp: 172.16.0.57:5060 Aliases: tcp: VRTPENGINE:5060 udp: VRTPENGINE:5060 WARNING: no fork mode 0(6299) INFO: <core> [core/tcp_main.c:5042]: init_tcp(): using epoll_lt as the io watch method (auto detected) Here's the problem: When I connect via UDP, everything works fine. I can connect and see all SIP traffic. However, if I try to connect via TCP, I see the initial SYN packet in attempting to establish a connection. Kamailio responds with an [RST,ACK] message and the TCP connection is never established. No further TCP traffic is sent. Any ideas on what I'm doing wrong? Peter H. Manley, Ph.D. Chief Software Architect KomBea Corporation 3400 North Ashton Blvd, Suite 470<https://urldefense.proofpoint.com/v2/url?u=https-3A__maps.google.com_-3Fq-3…> Lehi, Utah 84043<https://urldefense.proofpoint.com/v2/url?u=https-3A__maps.google.com_-3Fq-3…> www.kombea.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kombea.com_&d=DwMF-…> Office:+1.801.610.5808 Mobile +1.801.243.7773

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sr-users June 2021