DD-WRT router - whitelist setup for internet blocking for only a few client PCs

Closed - This job posting has been filled and work has been completed.

Job Description

DD-WRT router - whitelist setup for internet blocking for only a few client PCs.
There are 5 PCs total on the network.

Please setup:
3 PCs are allowed to only access a few websites.
The other 2 PCs are not restricted in any way.

I'd prefer to set this up in the router and not install any client side software.
I also would prefer not to use proxy or DNS bypassing.

I would prefer to use some sort of iptables, or URL whitelisting, but I just dont know how to program this int the DD-wrt router.