extending a network

[Matt Russell]

hi, I'm sorting out my brother's network, and here's the situation:

His lodger has the internet connection with a router (router A), which has a long ethernet cable into my brother's studio. He wants atleast 6 ports to plug computers into. I could get another wired router (router B), and connect this up, since we have done this before, but that can cause problems with communicating with computers connected to router A.

What is the best way to set up such a network?

Thanks,
Matt

EDIT:
I've just seen you can get gigabit switches fairly cheaply, which would definately be good, he wants a very fast network for moving huge video files around. Any advice on using a switch for the above setup?

 

[Matt Russell]

okay, if the router is 100Mb, and i connect a 1gigabit switch to it, will computers with 1gb capability, connected to the switch, be able to communicate at 1gb?

Also, I assume the router would be the DHCP server? Which means there shouldn't be a problem with computers connecting to the internet, or other network resources connected to the router, not the switch (although obviously the connection would be capped at 100MBit)

Thanks in advance for your time,
Matt

 

[Matt Russell]

excellent, that's everything i need to know

thank you very much
Matt