![](/images/backgrounds/119749/bgf9.png)
Following are some examples that explain how to set up network filters in the
internet, as shown in Figure 13.
The following steps show how to filter Network 6-10 so that it is not visible to
Network 16-20 as shown in Figure 13.
1. Add an output network filter for Network 6-10 to Interface 2 on Router B.
AP2 config>add nfilter out
Interface # [0]? 2
First Network range number (decimal) [0]? 6
Last Network range number (decimal) [0]? 10
2. Enable the output network filter as exclusive.
AP2 config>enable nfilter out exc
Interface # [0]? 2
This filter excludes all information on Network 6-10 from being forwarded
through Interface 2 to Network 16-20.
Interface 3
Interface 2
Interface 1
Interface 3
Router B Router A
Interface 1
Interface 2
Network Range
11-15
Network Range
1-5
Network Range
6-10
Network Range
16-20
Zone Sales
Zone Finance
Zone Service
Zone Manufacturing
Zone Shipping
Zone Admin
Network Range
21-25
Zone Connect
Figure 13. Example of Network Filtering.
Using AppleTalkPhase 2
Chapter3. Using AppleTalk Phase 2 219