13 Aug
2015
13 Aug
'15
2:35 p.m.
Hello,
I'm using RTPproxy for the first time in bridged mode and I can't get
kamailio/rtpproxy to rewrite the c parameter to the correct public ip address of
kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our carrier, this is its
public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I've started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721 -u rtpproxy rtpproxy -p /var/run/rtpproxy/rtpproxy.pid -l
192.168.0.1 172.0.0.1
I've played around with rtpproxy_manage() and the various flags (ie, ei), but I
can't get kamailio to set the correct public IP when the 200 OK has to be sent back to
the carrier.
It always sets it to its private address, instead of its public address.
I'm using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
13 Aug
13 Aug
3:25 p.m.
Hi,
Try starting rtpprpxy with a / in between the two IP addresses.
For example -l 1.1.1.1/2.2.2.2
Besides that it depends where you are placing your rtpproxy function.
BR,
Sammy
On Aug 13, 2015 8:36 AM, "Grant Bagdasarian" <gb(a)cm.nl> wrote:
Hello,
I’m using RTPproxy for the first time in bridged mode and I can’t get
kamailio/rtpproxy to rewrite the c parameter to the correct public ip
address of kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our
carrier, this is its public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I’ve started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721 -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 192.168.0.1 172.0.0.1
I’ve played around with rtpproxy_manage() and the various flags (ie, ei),
but I can’t get kamailio to set the correct public IP when the 200 OK has
to be sent back to the carrier.
It always sets it to its private address, instead of its public address.
I’m using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
3:49 p.m.
Hello,
Yeah, I also noticed I forgot the / . Now the SDP c parameter is set correctly, but the
audio from private to public isn’t relayed by rtpproxy.
I ran a tcp dump on both interfaces (private and public), and it showed me RTP is being
received from Freeswitch and also from our carrier, but nothing is passed between the two
interfaces by rtpproxy. Any ideas?
Below a slim version of my config:
Request_route {
if (is_method("INVITE")) {
record_route();
if (has_body("application/sdp")) {
rtpproxy_offer("ei");
}
}
}
onreply_route[MANAGE_REPLY] {
if (has_body("application/sdp")) {
rtpproxy_answer("ie");
}
}
route[WITHINDLG] {
if (!has_totag()) return;
if (loose_route()) {
if(is_method("BYE")) {
rtpproxy_manage();
}
route(RELAY);
exit;
}
}
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of SamyGo
Sent: Thursday, August 13, 2015 3:26 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
<sr-users(a)lists.sip-router.org>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
Try starting rtpprpxy with a / in between the two IP addresses.
For example -l 1.1.1.1/2.2.2.2<http://1.1.1.1/2.2.2.2>
Besides that it depends where you are placing your rtpproxy function.
BR,
Sammy
On Aug 13, 2015 8:36 AM, "Grant Bagdasarian"
<gb@cm.nl<mailto:gb@cm.nl>> wrote:
Hello,
I’m using RTPproxy for the first time in bridged mode and I can’t get kamailio/rtpproxy to
rewrite the c parameter to the correct public ip address of kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our carrier, this is its
public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I’ve started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721<http://127.0.0.1:7721> -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 192.168.0.1 172.0.0.1
I’ve played around with rtpproxy_manage() and the various flags (ie, ei), but I can’t get
kamailio to set the correct public IP when the 200 OK has to be sent back to the
carrier.
It always sets it to its private address, instead of its public address.
I’m using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
4 p.m.
I enabled DBUG logging when starting rtpproxy:
The logs output:
INFO:handle_delete:369832-3648463033-238704: forcefully deleting session 1 on ports
57012/35102
INFO:remove_session:369832-3648463033-238704: RTP stats: 0 in from callee, 0 in from
caller, 0 relayed, 0 dropped, 464 ignored
INFO:remove_session:369832-3648463033-238704: RTCP stats: 0 in from callee, 0 in from
caller, 0 relayed, 0 dropped, 4 ignored
INFO:remove_session:369832-3648463033-238704: session on ports 57012/35102 is cleaned up
INFO:remove_session:369832-3648463033-238704: RTP stream from callee: SSRC=NONE,
ssrc_changes=0, psent=0, precvd=0, plost=0, pdups=0
INFO:remove_session:369832-3648463033-238704: RTP stream from caller: SSRC=NONE,
ssrc_changes=0, psent=0, precvd=0, plost=0, pdups=0
464 packets ignored. Are those actual RTP packets? It’s kinda odd when it says 0 in from
caller and callee.
Is there a way to dig a little deeper and find out why it ignored those packets?
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Grant
Bagdasarian
Sent: Thursday, August 13, 2015 3:50 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
<sr-users(a)lists.sip-router.org>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hello,
Yeah, I also noticed I forgot the / . Now the SDP c parameter is set correctly, but the
audio from private to public isn’t relayed by rtpproxy.
I ran a tcp dump on both interfaces (private and public), and it showed me RTP is being
received from Freeswitch and also from our carrier, but nothing is passed between the two
interfaces by rtpproxy. Any ideas?
Below a slim version of my config:
Request_route {
if (is_method("INVITE")) {
record_route();
if (has_body("application/sdp")) {
rtpproxy_offer("ei");
}
}
}
onreply_route[MANAGE_REPLY] {
if (has_body("application/sdp")) {
rtpproxy_answer("ie");
}
}
route[WITHINDLG] {
if (!has_totag()) return;
if (loose_route()) {
if(is_method("BYE")) {
rtpproxy_manage();
}
route(RELAY);
exit;
}
}
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of SamyGo
Sent: Thursday, August 13, 2015 3:26 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
<sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
Try starting rtpprpxy with a / in between the two IP addresses.
For example -l 1.1.1.1/2.2.2.2<http://1.1.1.1/2.2.2.2>
Besides that it depends where you are placing your rtpproxy function.
BR,
Sammy
On Aug 13, 2015 8:36 AM, "Grant Bagdasarian"
<gb@cm.nl<mailto:gb@cm.nl>> wrote:
Hello,
I’m using RTPproxy for the first time in bridged mode and I can’t get kamailio/rtpproxy to
rewrite the c parameter to the correct public ip address of kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our carrier, this is its
public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I’ve started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721<http://127.0.0.1:7721> -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 192.168.0.1 172.0.0.1
I’ve played around with rtpproxy_manage() and the various flags (ie, ei), but I can’t get
kamailio to set the correct public IP when the 200 OK has to be sent back to the
carrier.
It always sets it to its private address, instead of its public address.
I’m using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
4:01 p.m.
Hi,
If the media is coming from a different IP address than the signalling, you may need to
use the ‘r’ flag to force the address in the SDP to be trusted.
You should also use the same flags in the same order, in the on-reply route. (This is all
in http://kamailio.org/docs/modules/4.3.x/modules/rtpproxy.html#idp15555616)
rtpproxy_manage(“eir”);
In the withindlg route, you don’t need to specify the ei/ie direction, but you will need
to pass the ‘r’ flag.
Regards,
Hugh
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Grant
Bagdasarian
Sent: 13 August 2015 14:50
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hello,
Yeah, I also noticed I forgot the / . Now the SDP c parameter is set correctly, but the
audio from private to public isn’t relayed by rtpproxy.
I ran a tcp dump on both interfaces (private and public), and it showed me RTP is being
received from Freeswitch and also from our carrier, but nothing is passed between the two
interfaces by rtpproxy. Any ideas?
Below a slim version of my config:
Request_route {
if (is_method("INVITE")) {
record_route();
if (has_body("application/sdp")) {
rtpproxy_offer("ei");
}
}
}
onreply_route[MANAGE_REPLY] {
if (has_body("application/sdp")) {
rtpproxy_answer("ie");
}
}
route[WITHINDLG] {
if (!has_totag()) return;
if (loose_route()) {
if(is_method("BYE")) {
rtpproxy_manage();
}
route(RELAY);
exit;
}
}
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of SamyGo
Sent: Thursday, August 13, 2015 3:26 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
<sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
Try starting rtpprpxy with a / in between the two IP addresses.
For example -l 1.1.1.1/2.2.2.2<http://1.1.1.1/2.2.2.2>
Besides that it depends where you are placing your rtpproxy function.
BR,
Sammy
On Aug 13, 2015 8:36 AM, "Grant Bagdasarian"
<gb@cm.nl<mailto:gb@cm.nl>> wrote:
Hello,
I’m using RTPproxy for the first time in bridged mode and I can’t get kamailio/rtpproxy to
rewrite the c parameter to the correct public ip address of kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our carrier, this is its
public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I’ve started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721<http://127.0.0.1:7721> -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 192.168.0.1 172.0.0.1
I’ve played around with rtpproxy_manage() and the various flags (ie, ei), but I can’t get
kamailio to set the correct public IP when the 200 OK has to be sent back to the
carrier.
It always sets it to its private address, instead of its public address.
I’m using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
________________________________
This e-mail and any attachment is for authorised use by the intended recipient(s) only. It
may contain proprietary material, confidential information and/or be subject to legal
privilege. It should not be copied, disclosed to, retained or used by, any other party. If
you are not an intended recipient then please promptly delete this e-mail and any
attachment and all copies and inform the sender. Thank you for understanding.
4:10 p.m.
It’s working!
Thank you very much!!
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Waite, Hugh
Sent: Thursday, August 13, 2015 4:02 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.sip-router.org>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
If the media is coming from a different IP address than the signalling, you may need to
use the ‘r’ flag to force the address in the SDP to be trusted.
You should also use the same flags in the same order, in the on-reply route. (This is all
in http://kamailio.org/docs/modules/4.3.x/modules/rtpproxy.html#idp15555616)
rtpproxy_manage(“eir”);
In the withindlg route, you don’t need to specify the ei/ie direction, but you will need
to pass the ‘r’ flag.
Regards,
Hugh
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Grant
Bagdasarian
Sent: 13 August 2015 14:50
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hello,
Yeah, I also noticed I forgot the / . Now the SDP c parameter is set correctly, but the
audio from private to public isn’t relayed by rtpproxy.
I ran a tcp dump on both interfaces (private and public), and it showed me RTP is being
received from Freeswitch and also from our carrier, but nothing is passed between the two
interfaces by rtpproxy. Any ideas?
Below a slim version of my config:
Request_route {
if (is_method("INVITE")) {
record_route();
if (has_body("application/sdp")) {
rtpproxy_offer("ei");
}
}
}
onreply_route[MANAGE_REPLY] {
if (has_body("application/sdp")) {
rtpproxy_answer("ie");
}
}
route[WITHINDLG] {
if (!has_totag()) return;
if (loose_route()) {
if(is_method("BYE")) {
rtpproxy_manage();
}
route(RELAY);
exit;
}
}
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of SamyGo
Sent: Thursday, August 13, 2015 3:26 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
<sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
Try starting rtpprpxy with a / in between the two IP addresses.
For example -l 1.1.1.1/2.2.2.2<http://1.1.1.1/2.2.2.2>
Besides that it depends where you are placing your rtpproxy function.
BR,
Sammy
On Aug 13, 2015 8:36 AM, "Grant Bagdasarian"
<gb@cm.nl<mailto:gb@cm.nl>> wrote:
Hello,
I’m using RTPproxy for the first time in bridged mode and I can’t get kamailio/rtpproxy to
rewrite the c parameter to the correct public ip address of kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our carrier, this is its
public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I’ve started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721<http://127.0.0.1:7721> -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 192.168.0.1 172.0.0.1
I’ve played around with rtpproxy_manage() and the various flags (ie, ei), but I can’t get
kamailio to set the correct public IP when the 200 OK has to be sent back to the
carrier.
It always sets it to its private address, instead of its public address.
I’m using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
________________________________
This e-mail and any attachment is for authorised use by the intended recipient(s) only. It
may contain proprietary material, confidential information and/or be subject to legal
privilege. It should not be copied, disclosed to, retained or used by, any other party. If
you are not an intended recipient then please promptly delete this e-mail and any
attachment and all copies and inform the sender. Thank you for understanding.
4:47 p.m.
Good to know that your issue is resolved. I see you're applying only one
rtpproxy command, possibly your's only need incoming calls from carrier.
Also in BYE you need to use unforce_rtpproxy function to release ports.
Same solution can have many solutions; I'll share how mine works, for the
sake of finding any expert advise to do it better way.
Carrier ------[fiber]------ Kamailio ---------[lan]---------{LoadBalanced
Freeswitch Servers}
Carrier IP is IP-AUTHENTICATED, add the ip in the address table, use
permission module.
FreeSwitch IP(s) are added in the dispatcher table, use dispatcher module.
Then RTPProxy is engaged in NATMANAGE Route
route[NATMANAGE] {
#!ifdef WITH_NAT
if (is_request()) {
if(has_totag()) {
if(check_route_param("nat=yes")) {
setbflag(FLB_NATB);
}
}
}
if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))
return;
if(ds_is_from_list()){ #Put outgoing condition here i.e From
internal side to external IPs.
rtpproxy_manage("ei"); #the sequence of flags depends on
how rtpproxy started 1.1.1.1/2.2.2.2 or 2.2.2.2/1.1.1.1
}else{ #Usually inverse of the above condition i.e
From outside world to internal
rtpproxy_manage("ie"); # You can use any other flasg as well, cawrie
}
if (is_request()) {
if (!has_totag()) {
add_rr_param(";nat=yes");
}
}
if (is_reply()) {
if(isbflagset(FLB_NATB)) {
fix_nated_contact();
}
}
#!endif
return;
}
From your main route for a particular flow if you want
rtpproxy to be
forced all you need to do is set the flag: FLT_NATS
*Example: *
Incoming IP Authenticated carrier always need to engage rtpproxy since it
will end up in the LAN MediaServer pool.
#!ifdef WITH_IPAUTH
if((!is_method("REGISTER")) && allow_source_address())
{
xlog("L_INFO", "[$fU@$si:$sp][$ru]{$rm} ---- ROUTE AUTH:: Source IP
Allowed
for Inbound SIP/PSTN Carrier ----\n");
setflag(FLT_NATS);
return;
}
#!endif
I hope this either help alot of other ppl or get me some better advise on
how to improve.
Best Regards,
Sammy
Blog: http://saevolgo.blogspot.com
On Thu, Aug 13, 2015 at 10:10 AM, Grant Bagdasarian <gb(a)cm.nl> wrote:
It’s working!
Thank you very much!!
*From:* sr-users [mailto:sr-users-bounces@lists.sip-router.org] *On
Behalf Of *Waite, Hugh
*Sent:* Thursday, August 13, 2015 4:02 PM
*To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.sip-router.org>
*Subject:* Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
If the media is coming from a different IP address than the signalling,
you may need to use the ‘r’ flag to force the address in the SDP to be
trusted.
You should also use the same flags in the same order, in the on-reply
route. (This is all in
http://kamailio.org/docs/modules/4.3.x/modules/rtpproxy.html#idp15555616)
rtpproxy_manage(“eir”);
In the withindlg route, you don’t need to specify the ei/ie direction, but
you will need to pass the ‘r’ flag.
Regards,
Hugh
*From:* sr-users [mailto:sr-users-bounces@lists.sip-router.org
<sr-users-bounces(a)lists.sip-router.org>] *On Behalf Of *Grant Bagdasarian
*Sent:* 13 August 2015 14:50
*To:* SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) -
Users Mailing List
*Subject:* Re: [SR-Users] need help with RTPProxy in bridged mode
Hello,
Yeah, I also noticed I forgot the / . Now the SDP c parameter is set
correctly, but the audio from private to public isn’t relayed by rtpproxy.
I ran a tcp dump on both interfaces (private and public), and it showed me
RTP is being received from Freeswitch and also from our carrier, but
nothing is passed between the two interfaces by rtpproxy. Any ideas?
Below a slim version of my config:
Request_route {
if (is_method("INVITE")) {
record_route();
if (has_body("application/sdp")) {
rtpproxy_offer("ei");
}
}
}
onreply_route[MANAGE_REPLY] {
if (has_body("application/sdp")) {
rtpproxy_answer("ie");
}
}
route[WITHINDLG] {
if (!has_totag()) return;
if (loose_route()) {
if(is_method("BYE")) {
rtpproxy_manage();
}
route(RELAY);
exit;
}
}
*From:* sr-users [mailto:sr-users-bounces@lists.sip-router.org
<sr-users-bounces(a)lists.sip-router.org>] *On Behalf Of *SamyGo
*Sent:* Thursday, August 13, 2015 3:26 PM
*To:* SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) -
Users Mailing List <sr-users(a)lists.sip-router.org>
*Subject:* Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
Try starting rtpprpxy with a / in between the two IP addresses.
For example -l 1.1.1.1/2.2.2.2
Besides that it depends where you are placing your rtpproxy function.
BR,
Sammy
On Aug 13, 2015 8:36 AM, "Grant Bagdasarian" <gb(a)cm.nl> wrote:
Hello,
I’m using RTPproxy for the first time in bridged mode and I can’t get
kamailio/rtpproxy to rewrite the c parameter to the correct public ip
address of kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our
carrier, this is its public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I’ve started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721 -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 192.168.0.1 172.0.0.1
I’ve played around with rtpproxy_manage() and the various flags (ie, ei),
but I can’t get kamailio to set the correct public IP when the 200 OK has
to be sent back to the carrier.
It always sets it to its private address, instead of its public address.
I’m using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
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4:55 p.m.
Hello Sammy,
Thanks for the detailed explanation.
Btw, awesome blog! There are a lot of useful tutorials!
Keep up the good work ☺
Regards,
Grant
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of SamyGo
Sent: Thursday, August 13, 2015 4:47 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.sip-router.org>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Good to know that your issue is resolved. I see you're applying only one rtpproxy
command, possibly your's only need incoming calls from carrier. Also in BYE you need
to use unforce_rtpproxy function to release ports.
Same solution can have many solutions; I'll share how mine works, for the sake of
finding any expert advise to do it better way.
Carrier ------[fiber]------ Kamailio ---------[lan]---------{LoadBalanced Freeswitch
Servers}
Carrier IP is IP-AUTHENTICATED, add the ip in the address table, use permission module.
FreeSwitch IP(s) are added in the dispatcher table, use dispatcher module.
Then RTPProxy is engaged in NATMANAGE Route
route[NATMANAGE] {
#!ifdef WITH_NAT
if (is_request()) {
if(has_totag()) {
if(check_route_param("nat=yes")) {
setbflag(FLB_NATB);
}
}
}
if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))
return;
if(ds_is_from_list()){ #Put outgoing condition here i.e From internal side
to external IPs.
rtpproxy_manage("ei"); #the sequence of flags depends on how
rtpproxy started 1.1.1.1/2.2.2.2<http://1.1.1.1/2.2.2.2> or
2.2.2.2/1.1.1.1<http://2.2.2.2/1.1.1.1>
}else{ #Usually inverse of the above condition i.e From
outside world to internal
rtpproxy_manage("ie"); # You can use any other flasg as well, cawrie
}
if (is_request()) {
if (!has_totag()) {
add_rr_param(";nat=yes");
}
}
if (is_reply()) {
if(isbflagset(FLB_NATB)) {
fix_nated_contact();
}
}
#!endif
return;
}
From your main route for a particular flow if you want rtpproxy to be forced all you need
to do is set the flag: FLT_NATS
Example:
Incoming IP Authenticated carrier always need to engage rtpproxy since it will end up in
the LAN MediaServer pool.
#!ifdef WITH_IPAUTH
if((!is_method("REGISTER")) && allow_source_address())
{
xlog("L_INFO", "[$fU@$si:$sp][$ru]{$rm} ---- ROUTE
AUTH:: Source IP Allowed for Inbound SIP/PSTN Carrier ----\n");
setflag(FLT_NATS);
return;
}
#!endif
I hope this either help alot of other ppl or get me some better advise on how to
improve.
Best Regards,
Sammy
Blog: http://saevolgo.blogspot.com
On Thu, Aug 13, 2015 at 10:10 AM, Grant Bagdasarian
<gb@cm.nl<mailto:gb@cm.nl>> wrote:
It’s working!
Thank you very much!!
From: sr-users
[mailto:sr-users-bounces@lists.sip-router.org<mailto:sr-users-bounces@lists.sip-router.org>]
On Behalf Of Waite, Hugh
Sent: Thursday, August 13, 2015 4:02 PM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
If the media is coming from a different IP address than the signalling, you may need to
use the ‘r’ flag to force the address in the SDP to be trusted.
You should also use the same flags in the same order, in the on-reply route. (This is all
in http://kamailio.org/docs/modules/4.3.x/modules/rtpproxy.html#idp15555616)
rtpproxy_manage(“eir”);
In the withindlg route, you don’t need to specify the ei/ie direction, but you will need
to pass the ‘r’ flag.
Regards,
Hugh
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Grant
Bagdasarian
Sent: 13 August 2015 14:50
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hello,
Yeah, I also noticed I forgot the / . Now the SDP c parameter is set correctly, but the
audio from private to public isn’t relayed by rtpproxy.
I ran a tcp dump on both interfaces (private and public), and it showed me RTP is being
received from Freeswitch and also from our carrier, but nothing is passed between the two
interfaces by rtpproxy. Any ideas?
Below a slim version of my config:
Request_route {
if (is_method("INVITE")) {
record_route();
if (has_body("application/sdp")) {
rtpproxy_offer("ei");
}
}
}
onreply_route[MANAGE_REPLY] {
if (has_body("application/sdp")) {
rtpproxy_answer("ie");
}
}
route[WITHINDLG] {
if (!has_totag()) return;
if (loose_route()) {
if(is_method("BYE")) {
rtpproxy_manage();
}
route(RELAY);
exit;
}
}
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of SamyGo
Sent: Thursday, August 13, 2015 3:26 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List
<sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] need help with RTPProxy in bridged mode
Hi,
Try starting rtpprpxy with a / in between the two IP addresses.
For example -l 1.1.1.1/2.2.2.2<http://1.1.1.1/2.2.2.2>
Besides that it depends where you are placing your rtpproxy function.
BR,
Sammy
On Aug 13, 2015 8:36 AM, "Grant Bagdasarian"
<gb@cm.nl<mailto:gb@cm.nl>> wrote:
Hello,
I’m using RTPproxy for the first time in bridged mode and I can’t get kamailio/rtpproxy to
rewrite the c parameter to the correct public ip address of kamailio.
The setup is as following:
Carrier ------[fiber]------ Kamailio ---------[lan]--------- Freeswitch
Kamailio is listening on two interfaces:
1) Private: 172.0.0.1
2) Public: 192.168.0.1 (since we have a dedicated fiber with our carrier, this is its
public address)
Freeswitch is listening on:
1) 172.0.0.2
Carrier is on:
1) 10.0.0.1
I’ve started an rtpproxy instance on the Kamailio box using:
rtpproxy -s udp:127.0.0.1:7721<http://127.0.0.1:7721> -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 192.168.0.1 172.0.0.1
I’ve played around with rtpproxy_manage() and the various flags (ie, ei), but I can’t get
kamailio to set the correct public IP when the 200 OK has to be sent back to the
carrier.
It always sets it to its private address, instead of its public address.
I’m using Kamailio 4.2 with sippy/rtpproxy 2.0.
Could someone please point me into the right direction?
Thanks!
Grant
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
________________________________
This e-mail and any attachment is for authorised use by the intended recipient(s) only. It
may contain proprietary material, confidential information and/or be subject to legal
privilege. It should not be copied, disclosed to, retained or used by, any other party. If
you are not an intended recipient then please promptly delete this e-mail and any
attachment and all copies and inform the sender. Thank you for understanding.
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
4 Apr
4 Apr
7:02 p.m.
hi, i'm also having the same issue, same setup, but instead of private IP i have real
IP on my WAN interface. and regardless that i've used
rtpproxy_manage("coeir")
and
rtpproxy_manage("coier")
kamailio is still replying with my internal (sip+rtp) ip in the outgoing to WAN SDP.
Can you please help to understand how do i need to manager rtp proxy to send WAN IP in
SDP? when my WAN IP is private IP and my carrier is also
having private IP from same network, the issue is not seen.
Thanks in advance,
A
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SDF Public Access UNIX System - http://sdf.lonestar.org
1483
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8 comments
4 participants
participants (4)
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Arthur -
Grant Bagdasarian -
SamyGo -
Waite, Hugh