A secure, stable and highly configurable Linux based firewall
A web server and pages for easy administration of the firewall
A DHCP client that allows IPCop to, optionally, obtain its IP address from your ISP
A DHCP server that can help configure machines on your internal network
A caching DNS proxy, to help speed up Domain Name queries
A web caching proxy, to speed up web access
An intrusion detection system to detect external attacks on your network
The ability to partition your network into a GREEN, safe, network protected from the Internet, and a DMZ or ORANGE network containing publicly accessible servers, partially protected from the Internet
A VPN that allows you to connect your internal network to another network across the Internet, forming a single logical network