Thanks Lurker.
Very helpfull Indeed.
I knew what it did, but could not grasp how it handled its role as an internet gateway (In terms of how it shared the connection, Ie. How does a computer/program know that the connection is on the router.). In every diagram I have seen yes, they are the first to recieve any incoming data packets, and thus they direct them to the correct location.
I did read that some had built in firewall functions (Why not? They read the packet header anyway to send it to the right place, why not be able to say no as well

). Some switches now however act like routers also (type 3 switches).
Sort of like this yes.
**********************Internet********************
*************************|***********************
Comp ---- Hub 1 --------------- Router --------------- Hub 2 ---- Comp
**********|******************************|********
********Comp**************************Comp******
Anyway, as long as we know that a router wont change things.
Bently