a second DSL modem right to phone queue ,taking into concideration price and dsl speed.
Answers:
It depends what you aim by "best".
If by "best" you expect "cheapest" consequently you can do it for around $20-$30 by buying a web switch. Plug your modem and both machines into the switch and configure machine A for your internet. Go to your Network Connections, right click on the internet nouns god, select "Properties", click on the "Advanced" tab and turn on Internet Connection Sharing. This will put the domestic device on a local subnet and impart it the IP address 192.168.0.1. Now jump to gadget B and put it on duplicate subnet (set it to 192.168.0.2 or something) and product it connect to the internet via 192.168.0.1.
A cheaper method might be to buy a second ethernet adapter card and put it in electrical device A and use it solely for connecting to electrical device B. Slightly more involved since you're very soon configuring two ethernet cards, but you can bring back em for more or less $10 from swap-meets currently so it might be cheaper.
The problem near ICS is that the Windows firewall isn't atrociously safe and sound, so you'll want to constantly hold your domestic device up to date beside Microsoft's patch. If by "best" you anticipate most immobilize next I'd suggest buying a router.
You can not use another DSL modem !! A wired or wireless router would be your best bet.