System information

Troubleshooting Novell IPX
Book Title
8-146
Note Procedures for troubleshooting connectivity problems not specific to PSN environments are
described in the section “Novell IPX: Client Cannot Connect to Server on Remote LAN” earlier in
this chapter.
Table 8-3 outlines the problems that might cause this symptom and describes solutions to those
problems.
Table 8-3 Novell IPX: Client Cannot Connect to Server over PSN
Possible Problem Solution
Address mapping error
Step 1 Use the show running-config privileged exec command to view the
configuration of the router.
Step 2 Depending on your PSN environment, look for any x25 map ipx,
frame-relay map ipx
1
, or smds static-map ipx interface configuration
command entries in the router configuration.
Make sure the address mapping specified by these commands is correct:
• For X.25, address mapping maps host protocol addresses to the host’s
X.121 address.
• For Frame Relay, address mapping maps a next hop protocol address
and the DLCI
2
used to connect to the address.
• For SMDS
3
, address mapping defines static entries for SMDS remote
peer routers.
For more information about configuring address maps, refer to the Cisco IOS
Wide-Area Networking Configuration Guide and Wide Area Networking Command
Reference.
Encapsulation mismatch
Step 1 Use the show interfaces privileged exec command to determine the
encapsulation type being used (such as X.25, Frame Relay, or SMDS
encapsulation). Look for output similar to the following:
Serial0 is up, line protocol is up
Hardware is MCI Serial
Internet address is 192.168.54.92 255.255.255.0
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely
255/255, load 1/255
Encapsulation FRAME-RELAY, loopback not set,
keepalive set (10 sec)
Step 2
If an encapsulation command is not present, the default is HDLC
4
encapsulation. For PSN interconnection, you must explicitly specify the
proper encapsulation type (such as encapsulation x25 for an X.25
connection).
Configure the proper encapsulation type and use the show interfaces
command to verify that the encapsulation type is correct.
Misconfigured DLCI
assignments (Frame Relay only)
Step 1 Use the show frame-relay map exec command on the hub router to see
the Frame Relay map assignments currently configured.
Step 2 Check each Frame Relay map statement to ensure that the DLCI
assignments are correctly configured. Make sure you use the DLCIs
obtained from your Frame Relay provider. Remember that DLCI values
are locally significant.