It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you, -
When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9. Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov abalashov@evaristesys.com wrote:
When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that
Kamailio is randomly assigning large port numbers to send the TCP traffic out on.
I am not able to randomly open high ports for this purpose. Is there a
way to tell Kamailio to only use specific ports for this. I have tried using
force_send_socket() with Kamailio' s IP, and the port I want to send out
on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 12:57 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9. Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov <abalashov@evaristesys.commailto:abalashov@evaristesys.com> wrote: When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Can you print the logs when it tries to send the ACK? Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve swwilkins@mitre.org wrote:
Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
*From:* sr-users [mailto:sr-users-bounces@lists.kamailio.org] *On Behalf Of *Federico Cabiddu *Sent:* Friday, May 18, 2018 12:57 AM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9.
Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov abalashov@evaristesys.com wrote:
When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that
Kamailio is randomly assigning large port numbers to send the TCP traffic out on.
I am not able to randomly open high ports for this purpose. Is there a
way to tell Kamailio to only use specific ports for this. I have tried using
force_send_socket() with Kamailio' s IP, and the port I want to send out
on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
The INVITE has no port assigned in ruri, so I assume it is using the default port of 5060; the ACK does have 5060 in the ruri. Even if a new connection is created shouldn’t it be using the listen tcp port since I have tcp_reuse_port=yes?
Thank you!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 8:49 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Transport issue thought
Can you print the logs when it tries to send the ACK? Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 12:57 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9. Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov <abalashov@evaristesys.commailto:abalashov@evaristesys.com> wrote: When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Hi, if a new connection is created and you don't specify $fs or use force_send_socket, again is the OS choosing the port. The point is understanding here why a new connection is created instead of reusing the one created for the INVITE. Could please paste the logs, possibly at DEBUG level, when kamailio sends the ACK?
Cheers,
Federico
On Fri, May 18, 2018 at 3:39 PM, Wilkins, Steve swwilkins@mitre.org wrote:
The INVITE has no port assigned in ruri, so I assume it is using the default port of 5060; the ACK does have 5060 in the ruri. Even if a new connection is created shouldn’t it be using the listen tcp port since I have tcp_reuse_port=yes?
Thank you!
*From:* sr-users [mailto:sr-users-bounces@lists.kamailio.org] *On Behalf Of *Federico Cabiddu *Sent:* Friday, May 18, 2018 8:49 AM
*To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] Transport issue thought
Can you print the logs when it tries to send the ACK?
Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve swwilkins@mitre.org wrote:
Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
*From:* sr-users [mailto:sr-users-bounces@lists.kamailio.org] *On Behalf Of *Federico Cabiddu *Sent:* Friday, May 18, 2018 12:57 AM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9.
Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov abalashov@evaristesys.com wrote:
When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that
Kamailio is randomly assigning large port numbers to send the TCP traffic out on.
I am not able to randomly open high ports for this purpose. Is there a
way to tell Kamailio to only use specific ports for this. I have tried using
force_send_socket() with Kamailio' s IP, and the port I want to send out
on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
I have tried using t_relay_to_tcp() and t_realy, both with and without setting $ru = $ru + ";transport=tcp" right before the call. I get different errors and failures depending on which way I make the call. Which log would you want to see?
* I also wanted to point out that if I use UDP, the call connects (it is a WebRTC client to WebRTC client call, and both clients are registered in Kamailio). The call just gets dropped after 30 seconds because Asterisk 15.3 is not receiving the ACK back to the ‘200 OK’. Aas stated, TCP does not even connect.
* Another very interesting thing is that if I use UDP and Asterisk 14.6, the call works perfect! It stays connected and I have full duplex Audio and Video
Thank you!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 8:49 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Transport issue thought
Can you print the logs when it tries to send the ACK? Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 12:57 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9. Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov <abalashov@evaristesys.commailto:abalashov@evaristesys.com> wrote: When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
I don't understand, are you able to send an INVITE to Asterisk via TCP? Could you share a trace of the calls, masking the sensible information?
Cheers,
Federico
On Fri, May 18, 2018 at 4:56 PM, Wilkins, Steve swwilkins@mitre.org wrote:
I have tried using t_relay_to_tcp() and t_realy, both with and without setting $ru = $ru + ";transport=tcp" right before the call.
I get different errors and failures depending on which way I make the call. Which log would you want to see?
- I also wanted to point out that if I use UDP, the call connects (it
is a WebRTC client to WebRTC client call, and both clients are registered in Kamailio). The call just gets dropped after 30 seconds because Asterisk 15.3 is not receiving the ACK back to the ‘200 OK’. Aas stated, TCP does not even connect.
- Another very interesting thing is that if I use UDP and Asterisk
14.6, the call works perfect! It stays connected and I have full duplex Audio and Video
Thank you!
*From:* sr-users [mailto:sr-users-bounces@lists.kamailio.org] *On Behalf Of *Federico Cabiddu *Sent:* Friday, May 18, 2018 8:49 AM
*To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] Transport issue thought
Can you print the logs when it tries to send the ACK?
Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve swwilkins@mitre.org wrote:
Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
*From:* sr-users [mailto:sr-users-bounces@lists.kamailio.org] *On Behalf Of *Federico Cabiddu *Sent:* Friday, May 18, 2018 12:57 AM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9.
Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov abalashov@evaristesys.com wrote:
When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that
Kamailio is randomly assigning large port numbers to send the TCP traffic out on.
I am not able to randomly open high ports for this purpose. Is there a
way to tell Kamailio to only use specific ports for this. I have tried using
force_send_socket() with Kamailio' s IP, and the port I want to send out
on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Hi Federico,
Yes, after I do a $fs and also setting the port, I am now getting the call to go via TCP, However, the ACK is still lost. The ACK, very often does not make it back to ASTERISK, even in UDP. The problem is basically the same but it shows itself differently. Here is the log.
Kamailio Private IP is 100.10.1.50 Kamailio Public IP is 25.20.4.80 Asterisk Private IP is 100.10.1.125 Asterisk Public IP is 25.10.1.75
I really appreciate your time and effort in helping me!!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 11:02 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Transport issue thought
I don't understand, are you able to send an INVITE to Asterisk via TCP? Could you share a trace of the calls, masking the sensible information?
Cheers,
Federico
On Fri, May 18, 2018 at 4:56 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: I have tried using t_relay_to_tcp() and t_realy, both with and without setting $ru = $ru + ";transport=tcp" right before the call. I get different errors and failures depending on which way I make the call. Which log would you want to see?
* I also wanted to point out that if I use UDP, the call connects (it is a WebRTC client to WebRTC client call, and both clients are registered in Kamailio). The call just gets dropped after 30 seconds because Asterisk 15.3 is not receiving the ACK back to the ‘200 OK’. Aas stated, TCP does not even connect.
* Another very interesting thing is that if I use UDP and Asterisk 14.6, the call works perfect! It stays connected and I have full duplex Audio and Video
Thank you!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 8:49 AM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
Can you print the logs when it tries to send the ACK? Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 12:57 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9. Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov <abalashov@evaristesys.commailto:abalashov@evaristesys.com> wrote: When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
I sent the log but I just wanted to clear up the issue.
This is a WebRTC to WebRTC call
* If I use Kamailio 5.2 (UDP) and Asterisk 14.6, the call works perfect! * If I use Kamailio 5.2 (UDP) and Asterisk 15.3, the call connects but disconnects after 30 seconds (Asterisk never received ACK from ‘200 OK’) * If I use Kamailio 5.2 (TCP) and Asterisk x.x the call never connects.
Thank you!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 11:02 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Transport issue thought
I don't understand, are you able to send an INVITE to Asterisk via TCP? Could you share a trace of the calls, masking the sensible information?
Cheers,
Federico
On Fri, May 18, 2018 at 4:56 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: I have tried using t_relay_to_tcp() and t_realy, both with and without setting $ru = $ru + ";transport=tcp" right before the call. I get different errors and failures depending on which way I make the call. Which log would you want to see?
* I also wanted to point out that if I use UDP, the call connects (it is a WebRTC client to WebRTC client call, and both clients are registered in Kamailio). The call just gets dropped after 30 seconds because Asterisk 15.3 is not receiving the ACK back to the ‘200 OK’. Aas stated, TCP does not even connect.
* Another very interesting thing is that if I use UDP and Asterisk 14.6, the call works perfect! It stays connected and I have full duplex Audio and Video
Thank you!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 8:49 AM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
Can you print the logs when it tries to send the ACK? Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 12:57 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9. Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov <abalashov@evaristesys.commailto:abalashov@evaristesys.com> wrote: When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
I think the reason for the second issue listed below is that Kamailio never receives the ‘200 OK’ from back from the INVITE to Asterisk. I have noticed that starting sometime after version 14.6, Asterisk puts its Public IP-Address in the Contact field where as in 14.6 it puts it Private IP-Address.
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Wilkins, Steve Sent: Friday, May 18, 2018 12:15 PM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Transport issue thought
I sent the log but I just wanted to clear up the issue.
This is a WebRTC to WebRTC call
* If I use Kamailio 5.2 (UDP) and Asterisk 14.6, the call works perfect! * If I use Kamailio 5.2 (UDP) and Asterisk 15.3, the call connects but disconnects after 30 seconds (Asterisk never received ACK from ‘200 OK’) * If I use Kamailio 5.2 (TCP) and Asterisk x.x the call never connects.
Thank you!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 11:02 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
I don't understand, are you able to send an INVITE to Asterisk via TCP? Could you share a trace of the calls, masking the sensible information?
Cheers,
Federico
On Fri, May 18, 2018 at 4:56 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: I have tried using t_relay_to_tcp() and t_realy, both with and without setting $ru = $ru + ";transport=tcp" right before the call. I get different errors and failures depending on which way I make the call. Which log would you want to see?
* I also wanted to point out that if I use UDP, the call connects (it is a WebRTC client to WebRTC client call, and both clients are registered in Kamailio). The call just gets dropped after 30 seconds because Asterisk 15.3 is not receiving the ACK back to the ‘200 OK’. Aas stated, TCP does not even connect.
* Another very interesting thing is that if I use UDP and Asterisk 14.6, the call works perfect! It stays connected and I have full duplex Audio and Video
Thank you!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 8:49 AM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
Can you print the logs when it tries to send the ACK? Check also that the ACK ruri contains the same destination port which was used for the INVITE, otherwise a new connection will be created.
Best regards,
Federico
On Fri, May 18, 2018 at 2:31 PM, Wilkins, Steve <swwilkins@mitre.orgmailto:swwilkins@mitre.org> wrote: Thank you Alex and Federico,
I verified, and SO_REUSEPORT is defined on my OS. I am using Kamailio 5.2 and I set ‘tcp_reuse_port=yes;’ and $fs; this has been to no avail as ‘ACK’s’ are still using the high port number randomly assigned by Kamailio.
Thank you all for sharing your knowledge!
From: sr-users [mailto:sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Federico Cabiddu Sent: Friday, May 18, 2018 12:57 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Transport issue thought
You are right Alex, Linux kernel didn't support SO_REUSEPORT, which allows a socket to be used as source for a tcp connection while is already bound, until version 3.9. Kamailio's parameter tcp_reuse_port, if enabled and your OS has support for SO_REUSEPORT (so not only Linux but FreeBSD, OSX and others), allows you to use force_send_socket (or $fs) to send messages from a TCP port kamailio is listening to.
Cheers,
Federico
On Fri, May 18, 2018 at 12:28 AM, Alex Balashov <abalashov@evaristesys.commailto:abalashov@evaristesys.com> wrote: When an outgoing TCP connection is opened, either a port can be explicitly bound, or it is auto-assigned by the OS's networking stack. I believe Kamailio does the latter and does not offer options to constrain the range. If it does, I'm not aware of any apart from this one:
https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_reuse_port
Not sure if it would help in this case, you'd have to give it a try.
On Thu, May 17, 2018 at 10:21:34PM +0000, Wilkins, Steve wrote:
It appears that the bottom line of my TCP transport not working is that Kamailio is randomly assigning large port numbers to send the TCP traffic out on. I am not able to randomly open high ports for this purpose. Is there a way to tell Kamailio to only use specific ports for this. I have tried using force_send_socket() with Kamailio' s IP, and the port I want to send out on, but this did not work either. Does this sound like I am on the right track?
Thank you,
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-
Alex Balashov -
Federico Cabiddu -
Wilkins, Steve