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Detail : |
Harrison Ford is looking at a hacker attempt to login to their network. We see a packet sniffer application showing what the hacker is doing. We see the source IP is 192.168.10.0. Harrison ford is then showing writing a 'rule' on the firewall to block this hacker. He types 'deny 172.16.4.0 0.0.0.255'. The problem with these are both 192.168.10.0 and 172.16.4.0 are both private IP addresses, meaning they aren't someone from the outside world, they're someone from inside the local network, he's typed a different address than the screen showed the person was coming from, and the subnet mask he typed, 0.0.0.255 isn't valid - if anything it should be 255.0.0.0. |