i just got R7000, works great, but can this R7000 wifi router protect my LAN from cable modem WAN side like my Netscreen 5XT does now? i have too many devices with IP that go out to internet, this my 5XT is reaching max allowed users, etc.
This is a very good tutorial about iptables. Advanced users will find great interest in it. While normal users may use dd-wrt WebUI for easy configuration of firewall features. Most of the basic firewall configurations can be done through dd-wrt WebUI.
I am not being able to understand your requirement.
All routers come with basic Firewall support. Which firewall feature do you need??
I have just bought and configured the R7000 with the latest Kong flash. I have found this site helpful in the past
http://www.dd-wrt.com/wiki/index.php/Iptables_command
If you look at the command carfully you can mix and match them to suit your needs
This is a very good tutorial about iptables. Advanced users will find great interest in it. While normal users may use dd-wrt WebUI for easy configuration of firewall features. Most of the basic firewall configurations can be done through dd-wrt WebUI.