Many of us know about that at least in Asterisk 1.8 and 1.6 you can’t always see who is trying to hack your PBX.
I constantly receive such messages in my logs and the only thing I see is my IP address. I don’t see attacker’s IP address and I can’t do anything to block him:
NOTICE chan_sip.c: Sending fake auth rejection for device 1111asip:1111a@XXX.XXX.XXX.XXX;tag=2d291325
What should I do, how can I prevent such attacks? Should I think of switching to Asterisk 10 or does it have this problem too?
This problem is discussed so many times and I have read many topics here without any suggested solution. I can’t imagine that such problem can be ignored so much time, this is CRITICAL.