
Chapter 70 Troubleshooting
IES-1248-51V User’s Guide
573
Note: Be careful not to lock yourself and others out of the system.
If you lock yourself (and others) out of the system, you can try using the console
port to reconfigure the system. See Section 70.16 on page 574.
70.14 SNMP
The SNMP manager server cannot get information from the IES-1248-51V.
70.15 Telnet
I cannot telnet into the IES-1248-51V.
Table 227 Troubleshooting the SNMP Server
STEPS CORRECTIVE ACTION
1 Ping the IES-1248-51V from the SNMP server. If you cannot, check the cable,
connections and IP configuration.
2 Check to see that the community (or trusted host) in the IES-1248-51V
matches the SNMP server’s community.
3 Make sure that your computer’s IP address matches a configured trusted host
IP address (if configured).
Table 228 Troubleshooting Telnet
STEPS CORRECTIVE ACTION
1 Make sure that the number maximum allowed number of telnet sessions has
not already reached. The IES-1248-51V only accepts up to five telnet
sessions at a time.
Make sure that a telnet session is not already operating. The IES-1248-51V
only accepts one telnet session at a time.
2 Make sure that your computer’s IP address matches a configured secured
client IP address (if configured). The IES-1248-51V immediately disconnects
the telnet session if secured host IP addresses are configured and your
computer’s IP address does not match one of them.
3 Make sure that you have not disabled the Telnet service or changed the server
port number that the IES-1248-51V uses for Telnet.
5 Ping the IES-1248-51V from your computer.
If you are able to ping the IES-1248-51V but are still unable to telnet, contact
the distributor.
If you cannot ping the IES-1248-51V, check the cable, connections and IP
configuration.
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