[CLUE-Tech] linux & broadband

[David Anselmi]

That's what I suggested too, but it doesn't work with cable modems.  Your DSL
modem does NAT and DHCP so you can set up a private network on your one IP.
Doing the same with a cable modem makes the network a public one, so the ISP
would have to provide an IP for each machine (and they'll be happy to for a
price, I'm sure).

Cable modem users need some sort of gateway box to handle do NAT and be the DHCP
server.

It is possible to set up a gateway with only one NIC in it.  But that kind of
routing is a little harder to get my brain around, so I think it's easier with 2
NICs (a 2 NIC firewall is potentially more secure too).  Others have recommended
the same on this list.

Dave

Joel Cohen wrote:

> I'm not sure if anyone suggested this method, but here's another way to do
> it altogether: I use it for a DSL connection, but I think it should work
> fine for a cable modem as well. If it's done this way, it won't matter which
> machine is the gateway.
>
> Get an ethernet hub. Plug the output from the cable modem into the uplink
> port. Then plug the machines into the hub. That's it.