Nokia IP2255 - Security Appliance, Installation Manual

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8
Troubleshooting
106 Nokia IP2255 Security Platform Installation Guide
Problem
Encapsulation is not set to LLC/SNAP.
Solution Set encapsulation to LLC/SNAP. Consult your 1483 device
documentation.
Problem The MTU size is not 1500 (for Ethernet interfaces) or 1518 (for
four-port Gigabit Ethernet interfaces) or 9600 (for.two-port Gigabit Ethernet
interfaces or 10 Gigabit Ethernet interfaces.
Solution
The MTU size must be 1500 (for Ethernet interfaces) or 1518 (for
four-port Gigabit Ethernet interfaces) or 9600 (for.two-port Gigabit Ethernet
interfaces or 10 Gigabit Ethernet interfaces). Nokia does not support larger
MTU sizes.
Appliance Not Receiving Power
Problem Power cord is not properly plugged in.
Solution Check cord. Make sure it is properly seated at both ends.
Problem Power supply not providing power.
Solution Check power source. If there is no power at the source, take
appropriate action such as inserting a new fuse or resetting circuit breaker.
Unable to Log In to the Console Port—No Error Message
Two laptop computers (using terminal emulation programs) or terminals
should be able to communicate back to back in the same way that the terminal
communicates with the appliance. If this is not possible using your laptop
computer or terminal, the problem is with the terminal or cable and not with
the appliance.
Problem No console connection to the appliance.
Solution For information about how to create a console connection, see
“To connect to the console” on page 46.