Nokia 105s, Installation Manual

Page: 92 / 112

7
Troubleshooting
92 Nokia 105s Gateway 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 a 105s gateway and a host, and a straight-through cable between a
gateway 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 Gateway—No Connectivity
Between Ports
This section covers connectivity issues that are isolated within a 105s gateway
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” .