User manual

8-4 Packet Filter
s
Filter Types
Filters can be classified by the following types:
• Data filters - based on protocol-specific packet information
• Advertisement filters - based on broadcast packet
information
• Generic filters - based on packet structure
Data Filters
Data filters control network access based on the protocol,
source/destination address, and port designation (for example,
TCP and UDP port designations) of the packet.
The following table describes the data filters supported by the
NETServer.
Filter Description
IP
Controls network access based on the protocol and
source/destination address. IP filter rules allow filtering
on source address, destination address, protocol type,
source port, and port designation of the IP packet.
IPX
Controls network access based on the protocol and
source/destination network. IPX filter rules allow
filtering on source network, destination network,
protocol type, source socket, destination socket, source
node, and node designation of the IPX packet.
AppleTalk
Controls network access based on the protocol and
source/destination zones. AppleTalk filters allow
filtering on source network, destination network,
protocol type, source socket, destination socket, source
node, and node designation of the AppleTalk packet.