[Freeswitch-users] ADD 2 ICE CANDIDATES mod_verto

Thu Apr 30 01:24:57 UTC 2020

Hello Brian

I included that variable in vars.xml configuration file and after that change I get this.

CASE 1: When I added the ext-rtp-ip value in  verto.conf.xml, I got 2 ice candidates. However, they are the same (public ip). <param name="ext-rtp-ip" value="190.84.118.88"/>
CASE 2: When I commented the ext-rtp-ip value in verto.conf.xml  file, I only got local IP as ice candidate

In these configurations ext-rtp-ip in internal and external sip_profiles are set with auto-nat values.

How can I get both IPs (local and public) as valid Ice candidates in the SDP?

CASE 1
2020-04-29 19:50:56.535350 [DEBUG] switch_core_media.c:8498 Audio params are unchanged for verto.rtc/5715976.
2020-04-29 19:50:56.535350 [DEBUG] mod_verto.c:2502 Local SDP verto.rtc/5715976:
v=0
o=FreeSWITCH 1588188372 1588188373 IN IP4 190.84.118.88
s=FreeSWITCH
c=IN IP4 190.84.118.88
t=0 0
a=msid-semantic: WMS RQn2gdt1uxyuNrfyPxHSSO3S0hq5M1jt
m=audio 19484 UDP/TLS/RTP/SAVPF 111 110
a=rtpmap:111 opus/48000/2
a=fmtp:111 useinbandfec=1; minptime=10; stereo=1; sprop-stereo=1
a=rtpmap:110 telephone-event/48000
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv
a=fingerprint:sha-256 FD:DF:48:02:C3:F8:D9:57:F8:C8:97:CD:3A:AB:6A:A6:97:4A:BA:A5:48:5A:3A:2D:0F:18:14:EC:D5:A9:21:86
a=setup:active
a=rtcp-mux
a=rtcp:19484 IN IP4 190.84.118.88
a=ice-ufrag:ICIqgB97Jp2mgcFO
a=ice-pwd:yRsZnXKhQPN10ISzbqQhSPes
a=candidate:2978044633 1 udp 659136 190.84.118.88 19484 typ host generation 0
a=candidate:3048048785 1 udp 659136 190.84.118.88 19484 typ host generation 0
a=end-of-candidates
a=ssrc:917829176 cname:HwmNAFFU33fGlk40
a=ssrc:917829176 msid:RQn2gdt1uxyuNrfyPxHSSO3S0hq5M1jt a0
a=ssrc:917829176 mslabel:RQn2gdt1uxyuNrfyPxHSSO3S0hq5M1jt
a=ssrc:917829176 label:RQn2gdt1uxyuNrfyPxHSSO3S0hq5M1jta0
m=video 0 UDP/TLS/RTP/SAVPF 19

CASE 2
2020-04-29 20:05:01.563371 [DEBUG] mod_verto.c:2502 Local SDP verto.rtc/5715976:
v=0
o=FreeSWITCH 1588191001 1588191002 IN IP4 192.168.1.170
s=FreeSWITCH
c=IN IP4 192.168.1.170
t=0 0
a=msid-semantic: WMS uwE5jFb2y1vHfnFvS07p6MR0MiZh3hfo
m=audio 17700 UDP/TLS/RTP/SAVPF 111 110
a=rtpmap:111 opus/48000/2
a=fmtp:111 useinbandfec=1; minptime=10; stereo=1; sprop-stereo=1
a=rtpmap:110 telephone-event/48000
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv
a=fingerprint:sha-256 FD:DF:48:02:C3:F8:D9:57:F8:C8:97:CD:3A:AB:6A:A6:97:4A:BA:A5:48:5A:3A:2D:0F:18:14:EC:D5:A9:21:86
a=setup:active
a=rtcp-mux
a=rtcp:17700 IN IP4 192.168.1.170
a=ice-ufrag:yBbvdTlQ2aXVi29M
a=ice-pwd:CipItVdvMfCRN6EcxGxApIhh
a=candidate:8338699166 1 udp 659136 192.168.1.170 17700 typ host generation 0
a=end-of-candidates
a=ssrc:1119156645 cname:EKjNgkFEb1cheIDW
a=ssrc:1119156645 msid:uwE5jFb2y1vHfnFvS07p6MR0MiZh3hfo a0
a=ssrc:1119156645 mslabel:uwE5jFb2y1vHfnFvS07p6MR0MiZh3hfo
a=ssrc:1119156645 label:uwE5jFb2y1vHfnFvS07p6MR0MiZh3hfoa0
m=video 0 UDP/TLS/RTP/SAVPF 19

De: Brian West <brian at freeswitch.com>
Enviado el: miércoles, 29 de abril de 2020 15:17
Para: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Asunto: Re: [Freeswitch-users] ADD 2 ICE CANDIDATES mod_verto

set the variable include_external_ip=true

/b

On Mon, Apr 27, 2020 at 3:02 PM Jazmin Marina Florez Marino <Jazmin.Marino at on24.com<mailto:Jazmin.Marino at on24.com>> wrote:
Hello all,

I am working with mod_verto in a scenario where I need to send public and private IP addresses as ICE candidates.
When I modify the ext-rtp-ip parameter, it only sends one option as typ host ice candidate. However, for my implementation I need to send both.

What I need is the combination of those ice candidates, something like this:
a=candidate:8228103366 1 udp 659136 190.84.118.88 31028 typ host generation 0
a=candidate:3496438569 1 udp 659136 192.168.1.170 24210 typ host generation 0

Is it possible to add both ice candidates in the same SDP from configuration files?

SDP with local IP
2020-04-24 14:17:23.715620 [DEBUG] mod_verto.c:2502 Local SDP verto.rtc/5715976:
v=0
o=FreeSWITCH 1587724815 1587724816 IN IP4 190.84.118.88
s=FreeSWITCH
c=IN IP4 190.84.118.88
t=0 0
a=msid-semantic: WMS 8gumHFWDC0sD12iPvVhSeEhUfLdXQBVO
m=audio 31028 UDP/TLS/RTP/SAVPF 111 110
a=rtpmap:111 opus/48000/2
a=fmtp:111 useinbandfec=1; minptime=10; stereo=1; sprop-stereo=1
a=rtpmap:110 telephone-event/48000
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv
a=fingerprint:sha-256 FD:DF:48:02:C3:F8:D9:57:F8:C8:97:CD:3A:AB:6A:A6:97:4A:BA:A5:48:5A:3A:2D:0F:18:14:EC:D5:A9:21:86
a=setup:active
a=rtcp-mux
a=rtcp:31028 IN IP4 190.84.118.88
a=ice-ufrag:BiYFM6pSItFoUq2t
a=ice-pwd:wTz7x9b00ImLonRPvGl8CBRb
a=candidate:8228103366 1 udp 659136 190.84.118.88 31028 typ host generation 0
a=end-of-candidates
a=ssrc:2930644107 cname:If1gLNJdD1HvUPbg
a=ssrc:2930644107 msid:8gumHFWDC0sD12iPvVhSeEhUfLdXQBVO a0
a=ssrc:2930644107 mslabel:8gumHFWDC0sD12iPvVhSeEhUfLdXQBVO
a=ssrc:2930644107 label:8gumHFWDC0sD12iPvVhSeEhUfLdXQBVOa0
m=video 0 UDP/TLS/RTP/SAVPF 19

SDP with Public IP
<param name="ext-rtp-ip" value="190.84.118.88"/>
2020-04-24 14:13:49.395900 [DEBUG] mod_verto.c:2502 Local SDP verto.rtc/5715976:
v=0
o=FreeSWITCH 1587731419 1587731420 IN IP4 192.168.1.170
s=FreeSWITCH
c=IN IP4 192.168.1.170
t=0 0
a=msid-semantic: WMS t9mERteVPrwT3aZbexPlp2U6Cspg78dq
m=audio 24210 UDP/TLS/RTP/SAVPF 111 110
a=rtpmap:111 opus/48000/2
a=fmtp:111 useinbandfec=1; minptime=10; stereo=1; sprop-stereo=1
a=rtpmap:110 telephone-event/48000
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv
a=fingerprint:sha-256 FD:DF:48:02:C3:F8:D9:57:F8:C8:97:CD:3A:AB:6A:A6:97:4A:BA:A5:48:5A:3A:2D:0F:18:14:EC:D5:A9:21:86
a=setup:active
a=rtcp-mux
a=rtcp:24210 IN IP4 192.168.1.170
a=ice-ufrag:mScCKXydfOjcMntK
a=ice-pwd:Depc4PrcDqdqfgirZlTz8iCe
a=candidate:3496438569 1 udp 659136 192.168.1.170 24210 typ host generation 0
a=end-of-candidates
a=ssrc:3132020181 cname:7pVPJ0AphX8bXYd1
a=ssrc:3132020181 msid:t9mERteVPrwT3aZbexPlp2U6Cspg78dq a0
a=ssrc:3132020181 mslabel:t9mERteVPrwT3aZbexPlp2U6Cspg78dq
a=ssrc:3132020181 label:t9mERteVPrwT3aZbexPlp2U6Cspg78dqa0
m=video 0 UDP/TLS/RTP/SAVPF 19

2020-04-24 14:13:49.395900 [NOTICE] mod_dptools.c:1360 Channel [verto.rtc/5715976] has been answered

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