ZyXEL Communications P-2302R-P1 - Manual (Page 19)

P2302R-P1 Support Notes
All contents Copyright

2007 ZyXEL Communications Corporation.
19
 Filter Types and SUA
Conceptually, there are two categories of filter rules: device and protocol . The Generic filter rules belong to the
device category; they act on the raw data from/to LAN and WAN. The IP and IPX filter rules belong to the
protocol category; they act on the IP and IPX packets.