System information

Troubleshooting AppleTalk 9-201
AppleTalk Enhanced IGRP: Clients Cannot Connect to Servers
AppleTalk Enhanced IGRP: Clients Cannot Connect to Servers
Symptom: Macintosh clients cannot connect to servers in an AppleTalk Enhanced IGRP network
environment.
Table 9-11 outlines the problems that might cause this symptom and describes solutions to those
problems.
Table 9-11 AppleTalk Enhanced IGRP: Clients Cannot Connect to Servers
Possible Problems Solution
Router is in discovery mode,
and no seed router exists
on the network
Step 1 Put the router in nondiscovery mode by assigning a network number
or cable range to the problem interface using the appletalk address or
appletalk cable-range interface configuration command.
Step 2 If the problem persists, consult your technical support representative
for more assistance.
Crossed serial circuits with
multiple lines between
two routers
Step 1 Check the physical attachment of serial lines to ensure that they are
correctly wired.
Step 2 If necessary, rewire the lines and check the output of the
show interfaces and show appletalk interface commands to confirm
that the interface and line protocol are up.
Step 3 If the router still cannot find routes, consult your technical support
representative for more assistance.
Software problem If the router issues a message that says “restart port pending,” upgrade to the
latest system software maintenance release or contact your technical support
representative.
Possible Problem Solution
Routers not establishing
neighbors properly
For information on troubleshooting this problem, see the section “AppleTalk
Enhanced IGRP: Routers Not Establishing Neighbors” later in this chapter.
Routes missing from
routing table
For information on troubleshooting this problem, see the section “AppleTalk
Enhanced IGRP: Routes Missing from Routing Table” later in this chapter.
Appletalk Enhanced IGRP
enabled on network with
connected Macintosh
computers
Macintosh computers do not understand AppleTalk Enhanced IGRP. RTMP must
be enabled on interfaces with Macintosh computers on the connected LAN
segment. By default, AppleTalk RTMP routes are automatically redistributed into
enhanced IGRP, and AppleTalk enhanced IGRP routes are automatically
redistributed into RTMP.
Step 1 Use the show running-config privileged exec command on routers to
make sure that RTMP is enabled on interfaces connected to LAN
segments with connected Macintosh computers.
Step 2 If RTMP is not enabled, enable it using the appletalk protocol rtmp
interface configuration command.
Step 3 If desired, disable AppleTalk Enhanced IGRP on the interface using the
no appletalk protocol eigrp interface configuration command.