User Guide

Setting Up 37
Filter Configuration
103-000178-001
August 29, 2001
Novell Confidential
Manual 99a38 July 17, 2001
7
Select Exceptions.
Displays a list of exceptions to the incoming (or outgoing) RIP filters.
Depending on the Actions parameter setting, routes that match a filter on
this list are always or are never accepted (or advertised) by the router,
even if another filter is configured to do the opposite.
8 Modify the exceptions list.
Select a filter from the list and press Enter to modify the filter or Del to
remove it. Press Ins to add a new network filter. Refer to Step 5 and Step
6 to add or modify a filter.
9 Press Esc to save the information and return to the Configure IPX Filters
menu.
IPX RIP Filter Example
In this example, network clouds are connected to each other through a T1
WAN link and a 256-Kbps WAN link. Packets from specific network ranges
in each cloud take longer to be transmitted through the T1 link than the 256-
Kbps link because their proximity to the links are different.
To restrict access to the 256-Kbps link to those network ranges that benefit
from it most, and to prevent other networks from accessing this slower link,
outbound filters are configured in the routers attached to the 256-Kbps link. In
this case, Router 1 permits only packets sent to network range 010159xx to be
transmitted through the 256-Kbps link. Router 2 permits only packets sent to
network range 020267xx to be transmitted through the 256-Kbps link.
The internetwork topology is shown in Figure 3 on page 38.