Re: NMap scanning from ethernet lan to wifi part

[rah.wollongong () yahoo com]

If these 3 PC's are running Windows and default Win Firewall is enabled, then no you won't see them. Unless you enable 
ICMP echo in the Firewall ruleset. Or if your router has a built in firewall and is set to not forward certain types of 
traffic you could get the same results. 

Try Nmap'ing from one of the 3 PC's to the other two see if you get a response.