Cabletron Systems Netlink FRX8000, User Manual

Page: 235 / 468

Configuring IPX 15-11
Configuring IPX Filters
Filtering is the method by which the network manager controls usage of a mixed
network by connection-oriented and connection-less traffic. (Connection-less traffic
does not require establishment of a logical connection prior to data exchange.) A filter
permits or denies (depending on how it is configured) some or all of a specific type of
IPX traffic across an interface. For example, a filter can be configured to deny trans-
mission of all outbound IPX SAP entries.
Filters are configured at the network level so they will be available for use on all IPX
interfaces without the need to reconfigure them at each interface. Application of these
filters is configured separately for each interface.
The process of configuring and using IPX filters is as follows:
1. Create a filter (see IPX Filter Configuration Definitions below)
2. Create an IPX Filter Applications record (described on page 15-16 ), which will:
◆
Identify the node that contains the interface to be affected.
◆
Identify the interface to be affected (by specifying an ID that matches one
in the IPX Interface file, described on
page 15-16 ).
◆
Specify the filter category: RIP, SAP, packet, or RIP router.
◆
Specify a direction: inbound or outbound.
◆
Specify whether the filter(s) to be applied will permit or deny passage of
the type of data defined by the filter(s).
◆
Identify up to 100 filters to be applied to the interface.
IPX Filter Configuration Definitions
To configure a filter, press [F] , then [C] from the Network Selection Menu
(or [A], [A], [F], [C] from the Main Menu). When prompted, enter:
●
Filter category: 0 = RIP, 1 = SAP, 2 = Packet, 3 = RIP Router. (The default is 0 .)
●
Filter ID: 1–65535 . (The default is 1 .) This is simply a unique identifier.
●
Any other requested information, noting the values in Table 15-5 (on
page 15-13) through Table 15-7 (on page 15-15). (Press [Enter] at a prompt to
accept a default value.)
The display will depend on the filter category. Figure 15-2 shows an example of a SAP
filter record.