Windows Firewall allows connection from any IP regardless of rule that only allow a specific IP
- by Pierre-Alain Vigeant
I have configured the Windows Firewall to Block (default) incoming connection on the public profile.
I have created a rule for a port (in this case, this is Sql Server) that explicitly states that only my office static IP is allowed.
If I test from my office, I am able to connect to the port. I was expecting that anybody outside the office would not be able to connect, but this is not the case. I asked a friend to telnet the port to see if it would reply and it does even if he's not on my network.
I am a bit confuse here. Shouldn't it block everybody but the given IP? Is my server completely unsecured?