I have the following configuration:
Internet -> Linksys Cable Modem -> Linksys WRT54G -> wired & wireless computers
Because the WRT54G is a switch I need to put a hub somewhere. I'm thinking that I can disconnect the modem from the switch and put a hub in the middle, connect my sniffer to the hub as well and then be able to sniff all packets from all computers.
Will this work ? Will I be able to see and detect IP addresses assigned by DHCP on the switch or do I have to track down MAC addresses ?