User manual

Packet Filters 8-
5
Advertisement Filters
Advertisement filters operate on network protocol packets that
contain varying information such as SAP and RIP. Filtering of
these packets is performed by the specific protocol process.
Note: The NETServer does not currently support filtering of
RTMP packets.
The following table describes the advertising filters supported
by the NETServer:
Filter Description
IP-RIP
Controls the content of IP Routing Information
Protocol (RIP) packets that are sent out or received
on specific ports. The IP RIP filtering process filters
addresses from the RIP packet upon transmission,
and does not enter routes into the routing upon
receipt.
IPX-SAP
Controls the content of Service Advertising Protocol
(SAP) packets that are sent out or received on
specific ports. The IPX-SAP filter rules allow
filtering on service type, server name, network
address, node address, and socket number fields of
the service entry. The forwarding process uses the
filter information to prevent the service information
from being included in the SAP packet.
IPX-RIP
Controls the content IPX RIP packets that are sent
out or received on specific ports. The IPX RIP
filtering process filters addresses from the RIP
packet upon transmission, and does not enter routes
into the routing upon receipt.
AT-ZIP
Controls the content of AppleTalk Zone Information
Protocol (ZIP) packets that are sent on specific ports.
The forwarding process uses the filter information to
prevent the zone information from being included in
the ZIP reply packet.