So here's the situation:
I'd like to block one or more IP addresses using native firewall that comes with Windows Server 2008. I opened it, chosen to create a new rule under inbound rules. I choose as follows: custom rule, all programs, any protocol, put remote IP address, set to block it, give a name and save.
When I look at the list, or edit it, I can see that the protocol field has automatically changed to HOPOPT. Every time I set it to 'Any', it turns back to HOPOPT after save, again and again. Can anyone tell me why?
I just want to deny all possible services for some users that I host on my machine (including websites on IIS7), but I can't. Please help.