[OpenSIPS-Users] Rtpengine configuration problem

[Robert Dyck]

While configuring my script for rtpengine I got a rather confusing result. The test involved 
a UA tethered to a phone with only IPV4 availble. The test was a call to a UA registered 
with an IPV6 address. The call was answered successfully but there was no media. A 
sniffer at the rtpengine host ( also opensips ) revealed the following --

continuous binding request, no media
wireless IPV4 -> rtpengine in port -> rtpengine out port -> IPV6 -> AB:CD::
The destination address was obviously bogus. Since the address was so short on a hunce I 
converted it to decimal. It turns out that the binding request was being sent to the NAT's 
public IPV4 address but as an IPV6 packet.

The signalling looked. Is this a misconfiguration? Rtpengine is configured in bridging mode 
with an IPV4 address and an IPV6 address.

INVTEe 




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