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<p>Hello,<br>
</p>
<br>
<div class="moz-cite-prefix">On 22.09.17 04:42, Patrick Wakano
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAPu3kNVLO9v7MNTpO=49t26Oescb5m+F-xiBz4af5vndubk+8Q@mail.gmail.com">
<div dir="ltr">
<div>
<div>Hello list,</div>
<div><br>
</div>
After deep investigation I found out that the issue is
happening because of the mechanism Kamailio uses to find the
most appropriate socket combined with the virtual IP usage....<br>
For socket selection, Kamailio first asks Linux which would be
the routing for a certain destination, then matches this
outcome with the list of listened sockets.</div>
<div>By default Linux will always return the local IP instead of
the virtual one. So if Kamailio only binds to the virtual IP,
the Linux's returned IP won't match our socket list and then
the socket selection fails....</div>
<div>So currently Kamailio active/stand-by HA setup with virtual
IP in a multi-homed environment does not work properly...</div>
<div>We can overcome this by listening to all addresses, but
then Kamailio will decide to use the local IP instead of the
virtual one, and then the HA idea end up broken....<br>
</div>
We can also force socket for everything. For regular call
routing, this options actually works fine if the script always
force some socket, but it seems to be not always possible for
local generated messages.</div>
</blockquote>
<br>
do you have an event_route[tm:local-request] in your config? There
you should be able to force send socket for local requests, iirc.<br>
<br>
<blockquote type="cite"
cite="mid:CAPu3kNVLO9v7MNTpO=49t26Oescb5m+F-xiBz4af5vndubk+8Q@mail.gmail.com">
<div dir="ltr"> By disabling mhomed and using the dispatcher
socket attr to send the OPTIONS message it works for example.
But for the LCR module we have no option because apparently the
LCR module has only one socket option, and so I am not able have
a different socket per gateway. <br>
We can also explicitly set the src address for a routing rule to
be the virtual IP instead of the local one. This makes Linux to
return the virtual IP instead of the local one. This solution
seems fine, but since it is done at linux level, every other
service on the box would be affected and every route on the box
would needed to be changed..<br>
<div>Another problem I found out is that I am not able to force
the socket for local generated messages. It actually crashes
Kamailio, and I always get a "core was not generated" msg....
anyone aware of that?</div>
</div>
</blockquote>
<br>
Have you done 'ulimit -c unlimited' and then run kamailio as root?<br>
<br>
<blockquote type="cite"
cite="mid:CAPu3kNVLO9v7MNTpO=49t26Oescb5m+F-xiBz4af5vndubk+8Q@mail.gmail.com">
<div dir="ltr">
<div>The actual fix for this, would be having Kamailio to search
the most appropriate socket in a different manner. It could
loop the sockets and see which one reaches the destination
instead of asking Linux to do it, or it could have some
routing directives which could be consulted before selecting a
socket.... (just ideas, not sure how feasible they are...)<br>
</div>
</div>
</blockquote>
<br>
Should anyone make a PR for such a change, it will be obviously
considered for merging.<br>
<br>
<blockquote type="cite"
cite="mid:CAPu3kNVLO9v7MNTpO=49t26Oescb5m+F-xiBz4af5vndubk+8Q@mail.gmail.com">
<div dir="ltr">
<div>I am considering using the Linux routing change option, but
has anyone faced such situation before?</div>
</div>
</blockquote>
<br>
I typically do lcr by combining mtree+dispatcher, never run in such
issue myself, but I also do mainly force send socket explicitly
because makes it more clear in config.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<blockquote type="cite"
cite="mid:CAPu3kNVLO9v7MNTpO=49t26Oescb5m+F-xiBz4af5vndubk+8Q@mail.gmail.com">
<div dir="ltr">
<div><br>
</div>
<div>Regards,</div>
<div>Patrick Wakano<br>
</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 24 August 2017 at 09:18, Patrick
Wakano <span dir="ltr"><<a href="mailto:pwakano@gmail.com"
target="_blank" moz-do-not-send="true">pwakano@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>
<div>Hello Daniel,<br>
</div>
I still couldn't make this SIP probing work.... So
currently my setup cannot actively check for GW
availability...<br>
Any idea about what may be causing it?<br>
<br>
</div>
Thanks for your time,<br>
</div>
Patrick Wakano<br>
</div>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_extra"><br>
<div class="gmail_quote">On 16 August 2017 at 13:01,
Patrick Wakano <span dir="ltr"><<a
href="mailto:pwakano@gmail.com" target="_blank"
moz-do-not-send="true">pwakano@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto">Forgot to mention it is a centos7
box...</div>
<div class="m_-6397899599530126820HOEnZb">
<div class="m_-6397899599530126820h5">
<div class="gmail_extra"><br>
<div class="gmail_quote">On 16 Aug. 2017
11:02 am, "Patrick Wakano" <<a
href="mailto:pwakano@gmail.com"
target="_blank" moz-do-not-send="true">pwakano@gmail.com</a>>
wrote:<br type="attribution">
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>
<div>
<div>
<div>Hi Daniel!<br>
</div>
Very grateful for your
attention!<br>
<br>
</div>
Apologies for lacking important
info, check below the version
and sockets.<br>
It may be worth mentioning these
IPs are virtual ones and I am
using <span
style="font-family:monospace,monospace">net.ipv4.ip_nonlocal_bind
= 1</span>(in this case the
virtual IP is assigned to the
box)<br>
Interesting that it has a "<span
style="font-family:monospace,monospace">mhomed: no"</span><span
style="font-family:monospace,monospace">
</span>for all sockets but I do
have mhomed=1 in my cfg file....
could that be the issue?<br>
<span
style="font-family:monospace,monospace"></span>Also
there is no message before this
one: <span
style="font-family:monospace,monospace">/usr/sbin/kamailio[6164]:
ERROR: <core>
[core/forward.c:181]:
get_out_socket(): no socket
found</span><br>
</div>
This is the first one that pops
when dispatcher tries to ping....<br>
<br>
</div>
Thanks,<br>
</div>
Patrick<br>
<br>
<div>
<div>
<div><span
style="font-family:monospace,monospace">kamailio
-v<br>
version: kamailio 5.0.2
(x86_64/linux) <br>
flags: STATS: Off, USE_TCP,
USE_TLS, USE_SCTP, TLS_HOOKS,
DISABLE_NAGLE, USE_MCAST,
DNS_IP_HACK, SHM_MEM,
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<br>
ADAPTIVE_WAIT_LOOPS=1024,
MAX_RECV_BUFFER_SIZE 262144,
MAX_LISTEN 16, MAX_URI_SIZE
1024, BUF_SIZE 65535, DEFAULT
PKG_SIZE 8MB<br>
poll method support: poll,
epoll_lt, epoll_et, sigio_rt,
select.<br>
id: unknown <br>
compiled on 12:03:49 Jun 26
2017 with gcc 4.8.5<br>
<br>
kamcmd> core.sockets_list<br>
{<br>
socket: {<br>
proto: udp<br>
address:
172.28.128.100<br>
ipaddress:
172.28.128.100<br>
port: 5060<br>
mcast: no<br>
mhomed: no<br>
}<br>
socket: {<br>
proto: udp<br>
address:
192.168.33.100<br>
ipaddress:
192.168.33.100<br>
port: 5060<br>
mcast: no<br>
mhomed: no<br>
}<br>
socket: {<br>
proto: tcp<br>
address:
172.28.128.100<br>
ipaddress:
172.28.128.100<br>
port: 5060<br>
mcast: no<br>
mhomed: no<br>
}<br>
socket: {<br>
proto: tcp<br>
address:
192.168.33.100<br>
ipaddress:
192.168.33.100<br>
port: 5060<br>
mcast: no<br>
mhomed: no<br>
}<br>
socket: {<br>
proto: tcp<br>
address:
172.28.128.100<br>
ipaddress:
172.28.128.100<br>
port: 8080<br>
mcast: no<br>
mhomed: no<br>
}<br>
}<br>
</span><br>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 15 August
2017 at 17:24, Daniel-Constantin
Mierla <span dir="ltr"><<a
href="mailto:miconda@gmail.com"
target="_blank"
moz-do-not-send="true">miconda@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div text="#000000"
bgcolor="#FFFFFF">
<p>Hello,</p>
<p>what are the sockets kamailio
is listening on? See `kamcmd
help` for the command that
lists the sockets.</p>
<p>Also, what is the log
messages before the first one
you pasted, there should be
another one printed from <span
style="font-family:monospace,monospace">get_out_socket().</span></p>
It is always important to
provide kamailio version
(kamailio -v) and the operating
system you are using.<br>
<br>
Cheers,<br>
Daniel
<div>
<div
class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987h5"><br>
<br>
<div
class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-cite-prefix">On
14.08.17 14:41, Patrick
Wakano wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div
class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987h5">
<div dir="ltr">
<div>Hello Kamailio
list,<br>
</div>
<div><br>
Hope you all doing
well!<br>
<br>
</div>
<div>I am stuck with one
problem that should be
incredibly easy to be
done, but apparently
it is not.... I want
my dispatcher, LCR and
nathelper modules to
always SIP ping my SIP
clients. I have a
Kamailio based SBC
that is separating two
networks, and so I am
using the 'mhomed'
flag, but none of
these SIP pings are
working.... for now I
will only ask about
the dispatcher....<br>
</div>
<div>My dispatcher
module has to talk
with SIP servers in
both networks, the
thing is when I enable
SIP ping for it (<span
style="font-family:monospace,monospace">modparam("dispatcher",
"ds_probing_mode",
1)</span>), it gives
me this type of error:<br>
<span
style="font-family:monospace,monospace">/usr/sbin/kamailio[6164]:
ERROR: <core>
[core/forward.c:181]: get_out_socket(): no socket found<br>
/usr/sbin/kamailio[6164]: ERROR: <core> [core/forward.c:183]:
get_out_socket(): no
corresponding socket
found for(udp:<a
href="http://192.168.33.110:6060"
target="_blank"
moz-do-not-send="true">192.168.33.110:6060</a>)<br>
/usr/sbin/kamailio[6164]: ERROR: tm [ut.h:317]: uri2dst2(): no
corresponding socket
found for
"192.168.33.110" af
2 (udp:<a
href="http://192.168.33.110:6060"
target="_blank"
moz-do-not-send="true">192.168.33.110:6060</a>)<br>
/usr/sbin/kamailio[6164]: ERROR: tm [uac.c:443]: t_uac_prepare(): no
socket found<br>
/usr/sbin/kamailio[6164]: ERROR: dispatcher [dispatch.c:2652]:
ds_ping_set():
unable to ping [sip:<a
href="http://192.168.33.110:6060" target="_blank" moz-do-not-send="true">192.168.33.110:6060</a>]<br>
</span><br>
</div>
<div>After research it
seems I need to
manually set a
"socket" attribute for
each of my GWs in
dispatcher list. After
putting the socket
parameter for the GW,
I got another error:<br>
<span
style="font-family:monospace,monospace">/usr/sbin/kamailio[14190]:
ERROR: <core>
[core/socket_info.c:2046]: parse_protohostport(): bad port number in
udp:<a
href="http://192.168.33.100:5060"
target="_blank"
moz-do-not-send="true">192.168.33.100:5060</a><br>
/usr/sbin/kamailio[14190]: ERROR: <core> [core/forward.c:181]:
get_out_socket(): no
socket found<br>
/usr/sbin/kamailio[14190]: ERROR: <core> [core/forward.c:183]:
get_out_socket(): no
corresponding socket
found for(udp:<a
href="http://192.168.33.110:6060"
target="_blank"
moz-do-not-send="true">192.168.33.110:6060</a>)<br>
/usr/sbin/kamailio[14190]: ERROR: tm [ut.h:317]: uri2dst2(): no
corresponding socket
found for
"192.168.33.110" af
2 (udp:<a
href="http://192.168.33.110:6060"
target="_blank"
moz-do-not-send="true">192.168.33.110:6060</a>)<br>
/usr/sbin/kamailio[14190]: ERROR: tm [uac.c:443]: t_uac_prepare(): no
socket found<br>
/usr/sbin/kamailio[14190]: ERROR: dispatcher [dispatch.c:2652]:
ds_ping_set():
unable to ping [sip:<a
href="http://192.168.33.110:6060" target="_blank" moz-do-not-send="true">192.168.33.110:6060</a>]</span><br>
<br>
What can be wrong in
my port info in the
socket config? (I
tried the socket with
and without quotes but
had no luck...)<br>
<span
style="font-family:monospace,monospace">select
* from dispatcher
where id=2;<br>
id | setid |
destination |
flags | priority
|
attrs | description <br>
----+-------+-----------------<wbr>--------+-------+----------+--<wbr>------------------------------<wbr>-------------+----------------<wbr>-----<br>
2 | 2 | sip:<a
href="http://192.168.33.110:6060" target="_blank" moz-do-not-send="true">192.168.33.110:6060</a>
| 0 | 0 |
socket="udp:<a
href="http://192.168.33.100:5060"
target="_blank"
moz-do-not-send="true">192.168.33.100:506<wbr>0</a>";rweight=50
| <br>
(1 row)<br>
</span><br>
</div>
<div>Anyhow, I was
expecting the 'mhomed'
parameter to do the
socket selection for
me. Regular call
routing either by the
dispatcher or by LCR,
also seems to require
me to explicitly set
the socket otherwise
Kamailio (or the OS)
may end up using the
wrong socket. So,
another question is
why 'mhomed' does not
dictate the whole
socket selection
Kamailio has to do
regardless the module
it is using to send
SIP requests?<br>
<br>
</div>
<div>Sorry for the long
e-mail....<br>
</div>
<div>Best regards,<br>
</div>
<div>Patrick Wakano<br>
</div>
</div>
<br>
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class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788mimeAttachmentHeader"></fieldset>
<br>
</div>
</div>
<pre>______________________________<wbr>_________________
Kamailio (SER) - Development Mailing List
<a class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-txt-link-abbreviated" href="mailto:sr-dev@lists.kamailio.org" target="_blank" moz-do-not-send="true">sr-dev@lists.kamailio.org</a>
<a class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-dev" target="_blank" moz-do-not-send="true">https://lists.kamailio.org/cgi<wbr>-bin/mailman/listinfo/sr-dev</a><span class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987HOEnZb"><font color="#888888">
</font></span></pre>
<span
class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987HOEnZb"><font
color="#888888"> </font></span></blockquote>
<span
class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987HOEnZb"><font
color="#888888"> <br>
<pre class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-txt-link-abbreviated" href="http://www.twitter.com/miconda" target="_blank" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda" target="_blank" moz-do-not-send="true">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - <a class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-txt-link-abbreviated" href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
Kamailio World Conference - <a class="m_-6397899599530126820m_5693305556384801093m_2265864410434847987m_5394055170380308788moz-txt-link-abbreviated" href="http://www.kamailioworld.com" target="_blank" moz-do-not-send="true">www.kamailioworld.com</a></pre>
</font></span></div>
</blockquote>
</div>
<br>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
Kamailio World Conference - <a class="moz-txt-link-abbreviated" href="http://www.kamailioworld.com">www.kamailioworld.com</a></pre>
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