13 Aug
2015
13 Aug
'15
5:47 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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