TROUBLESHOOTING COMMANDS
You can use three main troubleshooting commands for routing problems: ping, traceroute, and netstat. Sometimes the snoop, ifconfig, and ndd c ommands also prove handy to use. The following sections briefly show how to use these commands for routing troubleshooting.
Using the ping Command
The ping command is the basic test for routing configuration. First, try to ping to your own IP address. If you cannot do so, you have a problem with your interface configuration. If you can ping to your own IP address, try to ping to another host on the network. If you are successful, the route for the local network is working fine. If you cannot ping to a host on the local network, either the cable is broken or there is a problem ...
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