[Blink] RTP issue in Bonjour mode

[Saúl Ibarra Corretgé]

Hi John,

On Aug 12, 2013, at 5:00 PM, John Dyer wrote:

> Hello,
> 
>   In Blink 3.0.1 on OSX I am no longer able to call hosts on my network “direct” due to an RTP issue.  I noticed in the SDP there is two media IP addresses which is causing issues for us.   I tried this in Bonjour mode and it doesn’t work.  I also tried creating a dummy connection w/o proxy registration in hopes that this maybe was some sort of Bonjour bug, but that didn’t work either.  Both invites are below:
> 

This looks like a bug, I'll look into it.

Thanks for the report!

> 
> Bonjour Connection
> ——
> 
> SENDING: Packet 302, +1:53:53.749916
> 2013-08-12 10:57:14.672035: 192.168.1.36:61805 -(SIP over UDP)-> 10.6.xxxx.xxxx:5060
> INVITE sip:999xxxxx at tropo104.xxxx.xxxxx SIP/2.0
> Via: SIP/2.0/UDP 192.168.1.36:61805;rport;branch=z9hG4bKPjUMqCKNLxWZ62KIOLjA9rSzjyWmZnWh.i
> Max-Forwards: 70
> From: "John Dyer" <sip:91835470 at 192.168.1.36>;tag=G-7nC82x41PT7DCgVmIhtDbRBY1D8zAY
> To: <sip:9991x at tropo104.xxxx.xxx.xxxxxx>
> Contact: <sip:91835470 at 10.6.96.92:61805>
> Call-ID: LQh-lMA5AG.TTgNHZLLrMW1D24kTlbBv
> CSeq: 6709 INVITE
> Allow: SUBSCRIBE, NOTIFY, PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, MESSAGE, REFER
> Supported: 100rel, replaces, norefersub, gruu
> User-Agent: Blink Pro 3.1.0 (MacOSX)
> Content-Type: application/sdp
> Content-Length:   556
> 
> v=0
> o=- 3585308234 3585308234 IN IP4 10.6.96.92
> s=Blink Pro 3.1.0 (MacOSX)
> c=IN IP4 10.6.96.92
> t=0 0
> m=audio 50030 RTP/AVP 108 99 98 9 0 8 96
> c=IN IP4 192.168.1.36
> a=rtcp:50031
> a=rtpmap:108 opus/48000
> a=rtpmap:99 speex/32000
> a=rtpmap:98 speex/16000
> a=rtpmap:9 G722/8000
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:96 telephone-event/8000
> a=fmtp:96 0-15
> a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:DmZqsgsiaCkJjolhkPdd7OFS2aPoYOlJageL9unP
> a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:LpkpmzbtBeXmKL533PUGEaZVkiwuCU+qVmn5rDb1
> a=sendrecv
> 
> 
> 
> -----
> New “dummy” connection w/o proxy 
> ——
> 
> 2013-08-12 10:36:42.384435: 192.168.1.36:61805 -(SIP over UDP)-> 10.xx.xx.xx:5060
> INVITE sip:9991xxxxx at tropo185.xxxx.xxxx.xxxxx SIP/2.0
> Via: SIP/2.0/UDP 192.168.1.36:61805;rport;branch=z9hG4bKPjAd41oBUQpi82hG8SZVs9w7WOq8ABbmwb
> Max-Forwards: 70
> From: "John Dyer" <sip:4074740214 at 127.0.0.1>;tag=c4oNSScUBSgmxdpMM.qQcUYgQN66WBuZ
> To: <sip:9991xxxxx at tropo185.xxxx.xxxx.xxxxxt>
> Contact: <sip:79512640 at 10.6.96.92:61805>
> Call-ID: QzfmZT4rEEymU.aepaSzHDOe.9dJWaRw
> CSeq: 12965 INVITE
> Allow: SUBSCRIBE, NOTIFY, PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, MESSAGE, REFER
> Supported: 100rel, replaces, norefersub, gruu
> User-Agent: Blink Pro 3.1.0 (MacOSX)
> Content-Type: application/sdp
> Content-Length:   556
> 
> v=0
> o=- 3585307002 3585307002 IN IP4 10.6.96.92
> s=Blink Pro 3.1.0 (MacOSX)
> c=IN IP4 10.6.96.92
> t=0 0
> m=audio 50026 RTP/AVP 108 99 98 9 0 8 96
> c=IN IP4 192.168.1.36
> a=rtcp:50027
> a=rtpmap:108 opus/48000
> a=rtpmap:99 speex/32000
> a=rtpmap:98 speex/16000
> a=rtpmap:9 G722/8000
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:96 telephone-event/8000
> a=fmtp:96 0-15
> a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:O8UEKlRBwcCSYFeZZGAj6cOCSkEQ0T9SKkwjy2NU
> a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:PiXB3qmj7rAP1fr84A1ntzf2Iv6zpWisSI9KHN2L
> a=sendrecv
> 
> ———
> 
> In both cases you can see two ip’s for IN IP4, and it seems to be honoring the second, which is not going to work over the VPN.  Any idea how I can remove the second IP from the INVITE?  FWIW, this behavior seems to be new to Blink 3.0.x and seems like a bug.  
> 
> Thanks
> 
> -John
> 
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--
Saúl Ibarra Corretgé
AG Projects