Filter
Top Products
Advanced Configuration and Management Guide
IPX SAP Filters
IPX Service Advertisement Protocol (SAP) filters control client access to IPX servers.
Actions
• An IPX SAP filter applied to inbound packets learns or drops advertisements for the specific services.
• An IPX SAP filter applied to outbound traffic advertises or does not advertise services.
Scope
You configure IPX SAP filters globally, then apply them to specific ports.
Syntax
Use the following CLI commands or Web management interface panels to configure IPX SAP filters.
Table C.17: IPX SAP Filters
CLI syntax Web management links
HP9300(config)# ipx sap-filter <filter-num> permit | deny
<server-type> | any <server-name> | any
HP9300(config-if-1/1)# ipx sap-filter-group in | out <filter-list>
Configure->IPX->SAP Filter
Appletalk Filters
AppleTalk filters control access to AppleTalk zones and networks.
• AppleTalk zone filters permit or deny advertisement of zone names but allow network information to be
learned and forwarded. Users cannot see the zone names in their Choosers but you can ping the networks.
Zone filters are quite useful for reducing protocol overhead caused by “chatty” AppleTalk traffic. Use zone
filtering to block information from a specific routing switch to Macintosh computers.
• AppleTalk network filters also can filter network information. When you configure an AppleTalk zone filter to
deny zones, you can configure the filter to also deny the network information. To configure an AppleTalk filter
to filter network information, use the RTMP filtering option with the filter.
Figure D.6 shows an example of an AppleTalk zone filter. In this example, Macintosh computers in the Marketing
zone cannot see the Engineering zone. RTMP filtering is not used on this filter. Therefore, users in the Marketing
zone can still ping individual devices in the Engineering zone. However, the overhead caused by unnecessary
zone information exchanges between the two groups is eliminated.
To prevent users in the Marketing zone from even pinging individual devices in the Engineering zone, the RTMP
filtering option can be used with the filter.
C - 20