18 Jun
2021
18 Jun
'21
12:01 a.m.
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
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________________________________
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:
>
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http://www.voipembedded.com<http://www.voipembedded.com/
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
>
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