cannot rtmpsuck on Mac OS X 10.7

[x19290]

Hello.

I know that ipfw of Mac OS 10.7 does not understand "not uid..." so I did:

$ sudo bash
# ipfw add 40 fwd 127.0.0.1,1935 tcp from any to any 1935 uid $(logname)
# su rtmp
$ cd
$ rtmpsuck

Then I played stream but could hear nothing and rtmpsuck said nothing.

I terminated rtmpsuck and did below but it made the OS hang.

$ exit
# ipfw delete 40

What can I do?

[any ANONYMOUS forum user]

any progress with rtmpsrv, rtmpsuck on a Mac? any articles that can help us to use it?