9
Troubleshooting
100
Nokia IP300 Series Security Platform Installation Guide
Common Ethernet Problems—Connectivity with Attached
Device
Problem
No link light.
Solution
You might have used the wrong cable. Use a crossover cable
between an IP300 Series appliance and a host, and a straight-through cable
between an appliance and a hub.
Problem
Solid data and activity LED.
Solution
You might have set the wrong speed. Verify that the speeds match
on each end of the Ethernet connection (10 Mbps or 100Mbps).
Problem
Port not enabled.
Solution
Verify from the Interface page in Network Voyager that the
interface port is configured as active.
Problem
High collision rate on the hub.
Solution
Disconnect connections one at a time until the problem is
localized to one computer and troubleshoot further.
Unable to Ping Through Appliance—No Connectivity
Between Ports
This section covers connectivity issues that are isolated within an IP300
Series appliance or network.
Localize the problem by issuing pings to various network interfaces. Use
tcpdump to help isolate the problem. Use tcpdump to verify that a packet is
leaving or entering a port.
Problem
Interfaces not up.
Solution
Ensure that all interfaces are up and active, as described in
Chapter 3, “Performing the Initial Configuration.”
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