I am using Kerio 2.1.5 and am unsure what to do about the NetBios ports 137-139. I have SpeedTouch Dialer from my ISP (I suppose that would be dial-up broadband if that makes sense) which often wants to connect out on port 137. I've had it blocked and have a number of these in my log. 1,[04/Jul/2006 10:32:00] Rule 'SpeedTouch Dialer': Blocked: Out UDP, localhost:137->126.96.36.199:137, Owner: C:\PROGRAM FILES\THOMSON\SPEEDTOUCH USB\STDIALUP.EXE I also have a rapidly mounting number of these: 1,[04/Jul/2006 11:27:08] Rule 'Dial-Up Networking Application': Blocked: Out UDP, localhost:137->188.8.131.52:137, Owner: C:\WINDOWS\SYSTEM\RNAAPP.EXE I've searched around on what to about these but don't seem to be able to find a definitive answer. In short, what would be the purpose of these connections if allowed out, and should they be allowed or blocked? I notice BZ's ruleset shows the three NetBios ports blocked and have added the two rules for this following the rules I have for SpeedTouch and Dial-Up Networking until I can get some clarity on what to do with this part of my ruleset. Thanks in advance for any advice offered.