Protocols supported by WinRoute packet filters include:
The ability to permit or block raw specific ICMP types or raw IP protocols is invaluable to network administrators faced with an ever-growing list of application requirements to support. In particular, relatively new VPN protocols such as IPSec travel over raw IP protocols 50 and 51, which would be impossible to filter using some of the more limited firewall products on the market today that are only capable of controlling TCP or UDP-based protocols.