Thanks Harald,

No. You can only capture messages on the Abis interface between your own BTS and BSC, but not sniff stuff off the air.

I see this means I can only see the traffic that the BTS pass to the BSC but not all the on the air traffic.

That's what you can do with Airprobe and OsmocomBB.

I know about the possibility to use OsmocomBB to sniff over the air, but I will need to transmit as well, I mean to replay some of the sniffed traffic, can this be done in anyway with OsmocomBB? or I will I have to use both OsmocomBB to sniff and OpenBTS to replay?

Thanks again for the clarification, and sorry for the newbie questions but it's a bit difficult to figure out how things work without actually playing with them.

Loretta

--

• Harald Welte laforge@gnumonks.org http://laforge.gnumonks.org/

============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)