[Freeswitch-users] a=crypto in RTP/AVP, refer to rfc3711

Anthony Minessale anthony.minessale at gmail.com
Fri Jul 20 21:11:27 MSD 2012


This is because its a violation to have crypto in an AVP vs SAVP

If you get latest HEAD I added a profile param / channel var to allow this.

profile param:
NDLB-allow-crypto-in-avp

var:
sip_allow_crypto_in_avp



On Tue, Jul 17, 2012 at 4:14 AM, Anita Hall <anita.hall at simmortel.com> wrote:
> Hi
>
> I am getting an error a=crypto in RTP/AVP, refer to rfc3711 when using
> sipml5 client with FS.
>
> There is some info on this thread, which I am currently experimenting with.
> https://groups.google.com/forum/#!msg/doubango/m7FCqYxRcQc/-ThdAwWJxP8J
>
> Is there any change in setting on FS side that can deal with this ?
>
> Complete SIP Log
>
> v=0
> o=- 2834273280 1 IN IP4 127.0.0.1
> s=webrtc (chrome 20.0.1127.0) - Doubango Telecom (sipML5 r000)
> t=0 0
> a=group:BUNDLE audio video
> m=audio 51704 RTP/SAVPF 103 104 0 8 106 105 13 126
> c=IN IP4 182.68.141.91
> a=rtcp:51704 IN IP4 182.68.141.91
> a=candidate:829852397 1 udp 2130714367 192.168.1.31 51703 typ host
> generation 0
> a=candidate:829852397 2 udp 2130714367 192.168.1.31 51703 typ host
> generation 0
> a=candidate:3345412921 1 udp 1912610559 182.68.141.91 51704 typ srflx
> generation 0
> a=candidate:3345412921 2 udp 1912610559 182.68.141.91 51704 typ srflx
> generation 0
> a=candidate:2146792989 1 tcp 1694506751 192.168.1.31 50295 typ host
> generation 0
> a=candidate:2146792989 2 tcp 1694506751 192.168.1.31 50295 typ host
> generation 0
> a=ice-ufrag:Jz1C79lLNJodMTz2
> a=ice-pwd:UsowydSx3Uy9ehq8lKyR+JmJ
> a=mid:audio
> a=rtcp-mux
> a=crypto:1 AES_CM_128_HMAC_SHA1_80
> inline:ccVX0xSFpsuRG8lnNQgnSiMdckCgtHs5SET8r9Jt
> a=rtpmap:103 ISAC/16000
> a=rtpmap:104 ISAC/32000
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:106 CN/32000
> a=rtpmap:105 CN/16000
> a=rtpmap:13 CN/8000
> a=rtpmap:126 telephone-event/8000
> a=ssrc:862982555 cname:QP1jAi3c1C/sIjMM
> a=ssrc:862982555 mslabel:JTCmb2lovY15B6rH1xoGTpSOwige5Py22GgE
> a=ssrc:862982555 label:JTCmb2lovY15B6rH1xoGTpSOwige5Py22GgE00
> m=video 51704 RTP/SAVPF 100 101 102
> c=IN IP4 182.68.141.91
> a=rtcp:51704 IN IP4 182.68.141.91
> a=candidate:829852397 1 udp 2130714367 192.168.1.31 51703 typ host
> generation 0
> a=candidate:829852397 2 udp 2130714367 192.168.1.31 51703 typ host
> generation 0
> a=candidate:3345412921 1 udp 1912610559 182.68.141.91 51704 typ srflx
> generation 0
> a=candidate:3345412921 2 udp 1912610559 182.68.141.91 51704 typ srflx
> generation 0
> a=candidate:2146792989 1 tcp 1694506751 192.168.1.31 50295 typ host
> generation 0
> a=candidate:2146792989 2 tcp 1694506751 192.168.1.31 50295 typ host
> generation 0
> a=ice-ufrag:Jz1C79lLNJodMTz2
> a=ice-pwd:UsowydSx3Uy9ehq8lKyR+JmJ
> a=mid:video
> a=rtcp-mux
> a=crypto:1 AES_CM_128_HMAC_SHA1_80
> inline:ccVX0xSFpsuRG8lnNQgnSiMdckCgtHs5SET8r9Jt
> a=rtpmap:100 VP8/90000
> a=rtpmap:101 red/90000
> a=rtpmap:102 ulpfec/90000
> a=ssrc:1143670773 cname:QP1jAi3c1C/sIjMM
> a=ssrc:1143670773 mslabel:JTCmb2lovY15B6rH1xoGTpSOwige5Py22GgE
> a=ssrc:1143670773 label:JTCmb2lovY15B6rH1xoGTpSOwige5Py22GgE10
>
> 2012-07-17 14:48:02.285368 [ERR] sofia_glue.c:4673 a=crypto in RTP/AVP,
> refer to rfc3711
> 2012-07-17 14:48:02.285368 [DEBUG] switch_channel.c:2848
> (sofia/internal/1015 at 122.180.97.198) Callstate Change DOWN -> HANGUP
> 2012-07-17 14:48:02.285368 [NOTICE] sofia.c:5813 Hangup
> sofia/internal/1015 at 122.180.97.198 [CS_NEW] [INCOMPATIBLE_DESTINATION]
>
>
> regards,
> Anita
>
>
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-- 
Anthony Minessale II

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