[SR-Users] No secure attributes from rtpengine in SRTP/RTP bridge mode

[Juha Heinanen]

Alexey Rybalko writes:

> There is no such attribute in SDP payload from the latest Mozilla (v.29).
> 
> v=0
> o=Mozilla-SIPUA-29.0 371 0 IN IP4 0.0.0.0
> s=SIP Call
> t=0 0
> a=ice-ufrag:083b4837
> a=ice-pwd:dac461d48770be5e1dae6c450e144bf3
> a=fingerprint:sha-256
> C3:AA:DB:75:D7:60:FC:B6:94:A7:81:4F:74:A2:FF:44:4B:17:AE:D3:64:37:37:D1:AC:1A:F5:D4:86:1E:4F:7A
> m=audio 52775 RTP/SAVPF 109 0 8 101
> c=IN IP4 192.168.0.101
> a=rtpmap:109 opus/48000/2
> a=ptime:20
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> a=sendrecv
> a=setup:actpass
> a=candidate:0 1 UDP 2130444543 192.168.0.101 52775 typ host
> a=candidate:0 2 UDP 2130444542 192.168.0.101 63139 typ host
> a=rtcp-mux

there *is* a=setup:actpass in above.

-- juha

> > Can you check if the original offer contains an "a=setup:actpass"
> > attribute? I remember Firefox having a problem with this in some
> > version. This attribute is required for DTLS-SRTP and Firefox was not
> > sending it. It's fixed in later versions.