Re: That's a bad idea
I'm sure you meant the eejit? That guy is using the network aiming for unauthorised access (probe firewall). The op is talking about if he/she was the "the client's network guy". How is the client's network guy at fault for touching things on his own network?
It's like if an IT guy sets up a router that disable all unauthorised device connected to the router. How it is the IT guy doing stuff with "unauthorised access" when it is his network?