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Hi Sergey,<br>
<br>
Only testing with the SIP INVITE from one of our production SIP
trunk providers. The 'length's are listed below for the tcpdump.
Same packet size/contents for all tests. Only change was moving IP
from interface em3 to em1. Doesn't look like packet size is the
issue.<br>
<br>
Looking at some of the socket code. Could be related to socket
structs, maybe an array enumeration issue. We have 4 interfaces: em1
((10g up), em2(10g down), em3 (1g up), em4 (1g up). Just switched IP
from 3rd interface (2nd up) to 1st interface (1st up) - it worked.<br>
<br>
If somebody would like to provide a debug message/location, I could
recompile to test the array bucket theory. Quick way to check.<br>
<br>
Note, the config below is the entire test config. No changes. Only
purpose was to receive SIP INVITE to test socket.<br>
<br>
Thanks,<br>
Dan<font size="-1"><br>
</font><br>
<div class="moz-cite-prefix">Sergey Safarov wrote on 10/13/21 4:08
AM:<br>
</div>
<blockquote type="cite"
cite="mid:CAHtxdDcJquYJESGBxjNTfxH-6cX2DYDXMCUEWYawMkN8MCfZNg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<div dir="ltr">you also need to check UDP packets are fragmented
or not.
<div>you must receive all fragments before Kamailio is able to
parse the message.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Oct 13, 2021 at 1:28
AM David Villasmil <<a
href="mailto:david.villasmil.work@gmail.com"
moz-do-not-send="true">david.villasmil.work@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">use the
<div><br>
</div>
<div>listen=udp:YOUR-LOCAL-IP:5060</div>
<div><br>
</div>
<div>then do a netstat to see if it's listening on 5060</div>
<div><br>
</div>
<div><br clear="all">
<div>
<div dir="ltr">
<div dir="ltr">
<div>Regards,</div>
<div><br>
</div>
David Villasmil
<div>email: <a
href="mailto:david.villasmil.work@gmail.com"
target="_blank" moz-do-not-send="true">david.villasmil.work@gmail.com</a></div>
<div>phone: +34669448337</div>
</div>
</div>
</div>
<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Oct 12, 2021 at
11:17 PM <<a href="mailto:dem@htsweb.com"
target="_blank" moz-do-not-send="true">dem@htsweb.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<div>Okay, think I discovered something....<br>
<br>
I'm attempting to run the kamailio on interface em3 -
no joy. I moved the 10.102.88.81 ip to the em1
interface. kamailio is showing the UDP packets as
received (via my horribly simple config below).<br>
<br>
This test also answers the firewall question, UDP port
is allowed.<br>
<br>
So, that prompts the question... how do you use
kamailio with UDP on a specific interface ? I'm
thinking it might not do it currently ?<br>
<br>
Also, forgive me if I messed up the prior reply to the
list.<br>
<br>
Thanks,<br>
Dan<br>
<br>
<a href="mailto:dem@htsweb.com" target="_blank"
moz-do-not-send="true">dem@htsweb.com</a> wrote on
10/12/21 5:28 PM:<br>
</div>
<blockquote type="cite"> Hello,<br>
<br>
The tcpdump (below) shows packet reaching em3
interface. The firewalld command (below) shows UDP
port 5060 open.<br>
<br>
netcat doesn't do specific interfaces. Can't do ALL
interfaces, since em4 is a pcap of hundreds of
thousands of live UDP 5060.<br>
<br>
I'll have to write a standalone to prove that the
firewall allows UDP 5060 through the em3 interface,
post firewall... (betting it does). Should have test
prog tomorrow.<br>
<br>
Thanks,<br>
Dan<font size="-1"><br>
</font><br>
<div>Daniel-Constantin Mierla wrote on 10/12/21 4:27
PM:<br>
</div>
<blockquote type="cite">
<p>Hello,</p>
<p>tcpdump and other network sniffers (e.g., ngrep,
sngrep) capture the sip traffic before firewall,
so even if you see packets with them, the
application can still not get them due to
firewall.</p>
<p>To test, you can replace kamailio with netcat
listening on UDP port 5060 and see if it receives
the sip traffic.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 12.10.21 19:08, <a
href="mailto:dem@htsweb.com" target="_blank"
moz-do-not-send="true">dem@htsweb.com</a> wrote:<br>
</div>
<blockquote type="cite"> <tt>After 4 (long) days of
trying to receive any UDP SIP, I'm hoping
someone can point out what I'm doing wrong. I've
looked at the kamailio code. I'm beginning to
think it's the 'polling' code, but it looks
fine. It could be Centos or a Dell network
driver, but not seeing any errors anywhere.</tt><tt><br>
</tt><tt><br>
</tt><tt>- stock build/compile...</tt><tt><br>
</tt><tt> Version: kamailio 5.5.2 (x86_64/linux)
0d53d9</tt><tt><br>
</tt><tt> Compile 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_BLOCKLIST,
HAVE_RESOLV_RES</tt><tt><br>
</tt><tt> MAX_RECV_BUFFER_SIZE=262144</tt><tt><br>
</tt><tt> MAX_URI_SIZE=1024</tt><tt><br>
</tt><tt> BUF_SIZE=65535</tt><tt><br>
</tt><tt> DEFAULT PKG_SIZE=8MB</tt><tt><br>
</tt><tt> DEFAULT SHM_SIZE=64MB</tt><tt><br>
</tt><tt> ADAPTIVE_WAIT_LOOPS=1024</tt><tt><br>
</tt><tt> TCP poll methods: poll, epoll_lt,
epoll_et, sigio_rt, select</tt><tt><br>
</tt><tt> Source code revision ID: 0d53d9</tt><tt><br>
</tt><tt> Compiled with: gcc 4.8.5</tt><tt><br>
</tt><tt> Compiled architecture: x86_64</tt><tt><br>
</tt><tt> Compiled on: 08:44:19 Oct 11 2021</tt><tt><br>
</tt><tt><br>
</tt><tt>Running Centos 7 all updated. Dell R630.</tt><tt><br>
</tt><tt># sestatus</tt><tt><br>
</tt><tt>SELinux status: disabled</tt><tt><br>
</tt><tt># firewall-cmd --list-all</tt><tt><br>
</tt><tt> ports: 5666/tcp 873/tcp 873/udp 80/tcp
443/tcp 5060/tcp 5060/udp 5061/tcp 5061/udp</tt><tt><br>
</tt><tt><br>
</tt><tt>- Just trying to send SIP INVITE from
trunk provider to R630 kamailio.</tt><tt>..<br>
</tt><tt>(SIP trunk) UDP <a
href="http://172.200.200.202:5060"
target="_blank" moz-do-not-send="true">172.200.200.202:5060</a>
-> (firewall) UDP <a
href="http://172.250.250.162:5060"
target="_blank" moz-do-not-send="true">172.250.250.162:5060</a>
-> 1:1 NAT -> (R630) UDP <a
href="http://10.102.88.81:5060"
target="_blank" moz-do-not-send="true">10.102.88.81:5060</a></tt><tt><br>
</tt><tt><br>
</tt><tt>- I can 'see' the packet hit the em3
network...</tt><tt><br>
</tt><tt># tcpdump -i em3 -e -vv -n port 5060</tt><tt><br>
</tt><tt>11:53:33.260892 99:99:ef:3e:69:c1 >
99:99:1c:48:4e:e3, ethertype IPv4 (0x0800),
length 1366: (tos 0x0, ttl 54, id 20430, offset
0, flags [none], proto UDP (17), length 1352)</tt><tt><br>
</tt><tt> 172.200.200.202.sip >
10.102.88.81.sip: [udp sum ok] SIP, length: 1324</tt><tt><br>
</tt><tt> INVITE <a
href="mailto:sip:+18005551234@172.250.250.162:5060"
target="_blank" moz-do-not-send="true">sip:+18005551234@172.250.250.162:5060</a>
SIP/2.0</tt><tt><br>
...<br>
</tt><tt><br>
</tt><tt>At this point, I just need to see a SIP
INVITE received. Then I can go back to working
on a real config.</tt><tt><br>
</tt><tt><br>
</tt><tt>I've tried with TCP on/off, listening on
all networks, alias on/off, strace and
everything else I could think of.</tt><tt> Truly
appreciate any guidance.<br>
</tt><tt><br>
</tt><tt>Tried every sample config possible, but I
just need to test receiving the SIP UDP packet,
so this 'should' be minimum config...</tt><tt><br>
</tt><tt><br>
</tt><tt>#!KAMAILIO</tt><tt><br>
</tt><tt>debug=9</tt><tt><br>
</tt><tt>log_stderror=no</tt><tt><br>
</tt><tt>log_facility=LOG_LOCAL0</tt><tt><br>
</tt><tt>log_prefix="{$mt $hdr(CSeq) $ci} "</tt><tt><br>
</tt><tt>children=2</tt><tt><br>
</tt><tt>disable_tcp=yes</tt><tt><br>
</tt><tt>udp4_raw=on</tt><tt><br>
</tt><tt>auto_aliases=no</tt><tt><br>
</tt><tt>alias="<a href="http://sbc01.mysite.com"
target="_blank" moz-do-not-send="true">sbc01.mysite.com</a>"</tt><tt><br>
</tt><tt>listen=<a moz-do-not-send="true">udp:10.102.88.81:5060</a></tt><tt><br>
</tt><tt><br>
</tt><tt>loadmodule "debugger.so"</tt><tt><br>
</tt><tt>loadmodule "jsonrpcs.so"</tt><tt><br>
</tt><tt>loadmodule "kex.so"</tt><tt><br>
</tt><tt>loadmodule "corex.so"</tt><tt><br>
</tt><tt>loadmodule "sl.so"</tt><tt><br>
</tt><tt>loadmodule "rr.so"</tt><tt><br>
</tt><tt>loadmodule "pv.so"</tt><tt><br>
</tt><tt>loadmodule "textops.so"</tt><tt><br>
</tt><tt>loadmodule "siputils.so"</tt><tt><br>
</tt><tt>loadmodule "xlog.so"</tt><tt><br>
</tt><tt>loadmodule "sanity.so"</tt><tt><br>
</tt><tt>loadmodule "ctl.so"</tt><tt><br>
</tt><tt>loadmodule "cfg_rpc.so"</tt><tt><br>
</tt><tt><br>
</tt><tt>modparam("debugger", "cfgtrace", 1)</tt><tt><br>
</tt><tt><br>
</tt><tt>request_route {</tt><tt><br>
</tt><tt> xlog("SIP received
xxxxxxxxxxxxxxxxxxx\n");</tt><tt><br>
</tt><tt>}</tt><tt><br>
<br>
# kamcmd ps<br>
11578 main process - attendant<br>
11579 udp receiver child=0 sock=<a
href="http://10.102.88.81:5060"
target="_blank" moz-do-not-send="true">10.102.88.81:5060</a><br>
11580 udp receiver child=1 sock=<a
href="http://10.102.88.81:5060"
target="_blank" moz-do-not-send="true">10.102.88.81:5060</a><br>
11581 slow timer<br>
11583 timer<br>
11584 secondary timer<br>
11585 JSONRPCS FIFO<br>
11586 JSONRPCS DATAGRAM<br>
11587 ctl handler<br>
</tt><tt><br>
</tt><tt>- I get plenty of logging, but the
logging just waits here...</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10060]: INFO: ctl
[io_listener.c:210]: io_listen_loop():
io_listen_loop: using epoll_lt as the io watch
method (auto detected)</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10060]: DEBUG:
<core> [core/mem/q_malloc.c:374]:
qm_malloc(): qm_malloc(0x7fd2a8bae010, 4800)
called from core: core/io_wait.c:
init_io_wait(469)</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10059]: DEBUG:
<core> [core/mem/q_malloc.c:419]:
qm_malloc(): qm_malloc(0x7fd2a8bae010, 65456)
returns address 0x7fd2a8c652d8 frag.
0x7fd2a8c652a0 (size=65456) on 1 -th hit</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10060]: DEBUG:
<core> [core/mem/q_malloc.c:419]:
qm_malloc(): qm_malloc(0x7fd2a8bae010, 4800)
returns address 0x7fd2a8c652d8 frag.
0x7fd2a8c652a0 (size=4800) on 1 -th hit</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10060]: DEBUG:
<core> [core/mem/q_malloc.c:374]:
qm_malloc(): qm_malloc(0x7fd2a8bae010, 2400)
called from core: core/io_wait.c:
init_io_wait(516)</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10060]: DEBUG:
<core> [core/mem/q_malloc.c:419]:
qm_malloc(): qm_malloc(0x7fd2a8bae010, 2400)
returns address 0x7fd2a8c66600 frag.
0x7fd2a8c665c8 (size=2400) on 1 -th hit</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10060]: DEBUG: ctl
[io_listener.c:246]: io_listen_loop():
io_listen_loop: adding socket 8, type 2,
transport 3 (/var/run/kamailio//kamailio_ctl)</tt><tt><br>
</tt><tt>Oct 12 11:38:04 sbc01
/usr/local/sbin/kamailio[10060]: DEBUG: ctl
[../../core/io_wait.h:375]: io_watch_add(): DBG:
io_watch_add(0x7fd2a70a5360, 8, 2, 0x2439960),
fd_no=0</tt><tt><br>
<br>
- The only other thing that I see is transport
3. Isn't that a </tt><tt>UNIXS_SOCK?<br>
<br>
</tt><br>
<br>
<fieldset></fieldset>
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<pre cols="72">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
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