Good time of day!
The problem I faced with the following: Windows 7 Home premium with the included built-in firewall. Firewall operates in the mode block inbound\\outbound allow.
There is VirtualBox which propolene some ports from the host machine. In the firewall created a rule for VirtualBox, which allows inbound traffic on any Protocol and port for this application. The only limitation are the Ip addresses that are hardcoded in Scope/remote IP adresses. I have written 4 IP addresses(let's call them 1,2,3 and 4, respectively). Trying to get virtualBox on ports with IP, which is not in the list fail miserably(so everything works as it should). BUT! There is IP address 5, which is not in the list with which the man calmly bypasses this rule! I don't know if this is a bug, or some feature. But the fact remains that people with IP are not included in the list of allowed quietly bypasses the firewall. Can anyone explain what I encountered?
A little more to this:
My PC is behind a router, the router runs in NAT mode. People with IP=5 is also sitting behind a router and NAT. The only thing that unites us is one provider, resulting in IP address(outside the router), we have from the same pool.
Thanks in advance to all who wish to help!