Information Technology Reference
In-Depth Information
Table9-2
AppleTalk: Users Cannot Access Zones or Services (continued)
Possible Problems
Solution
Phase 1 and Phase 2
rule violations
1.
Use the
show appletalk globals exec
command to
determine whether the internetwork is in
compatibility mode.
2.
Enable the
appletalk name-lookup-interval
global
configuration command and use the
show appletalk neighbors exec
command to
determine which specific neighbor (by NBP
1
name) is
in compatibility mode.
3.
To resolve the problem, you can perform one of the
following actions:
•
Upgrade AppleTalk Phase 1 routers to AppleTalk
Phase 2 and reconfigure the internetwork
•
Ensure that all routers are in compliance with the two
Phase 1 and Phase 2 rules
For more information on Phase 1 and Phase 2 rule
violations, see the section “Phase 1 and Phase 2 Rule
Violations” later in this chapter.
Misconfigured access
lists or other filters
1.
Use the
show appletalk access-list exec
command
on routers in the path from source to destination.
2.
Disable any access lists (or just those on a
particularly suspect router) using the
no appletalk
access-group
interface configuration command. If
there are distribution lists or other filters configured,
disable them.
3.
After disabling access lists, check whether remote
zones and services become accessible.
4.
If zones and services are now available, a
misconfigured access list is the likely problem. To
isolate the problem access list, enable lists one at a
time until connectivity fails.
5.
Check the access lists and associated configuration
commands for errors. Configure explicit
permit
statements for traffic that you want to pass through
the router normally.
6.
If problems persist, there might be more than one
misconfigured access list. Continue enabling access
lists one at a time and fixing misconfigured access
lists until the problem is solved.
1.
NBP = Name Binding Protocol
