
Configuring AppleTalk Services
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Figure 2-6. Configuring Zone Filters with the 5.X Exclude Option
With the filter in place, the ZIP packets that Interface 3.1 generates no longer
advertise the Finance zone as being reachable. Any NBP Broadcast Request
packets that the interface receives for the Finance zone are not propagated as
Forward Request packets or Lookup packets. As a result, the services of the
Finance zone are no longer visible to end users in the Engineering zone and Sales
zone.
Zone Filter Rules
AppleTalk has several basic filtering rules, or conditions that govern how zone
filtering works, depending on whether you use the Exclude, Include, 5.X Exclude,
or 5.X Include options, as explained in the following sections.
1-1
Finance Zone
A Zone
B Zone
2-2
Human Resources Zone
3-3
Engineering Zone
4-4
Sales Zone
3-1
Filter
5.X Exclude Zone Filter List Networks Associated with Zones Advertised for
Zones in the Zone Filter List the Network for ZIP Reply
Finance
1-1
Engineering (Default Zone
of Interface 3.1)
APT0016A
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