This article describes what you can do if you have network problems. We will first identify the problem and then solve it.
Do you have an IP address
Find out if you have an IP address
If you do not have an IP address, fix this problem before proceeding.
We assume your IP address is 192.168.0.2
Can you reach your computer
Find out if you can reach your own computer
Do you have a standard gateway
# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.0.0 * 255.255.255.0 U 0 0 0 eth1 link-local * 255.255.0.0 U 0 0 0 eth1 loopback * 255.0.0.0 U 0 0 0 lo default 192.168.0.1 0.0.0.0 UG 0 0 0 eth1
The first blue line means: If there is any IP package for an IP address 192.168.0.*, just send it over network device eth1. The second blue line means: Every IP package that has not been handled yet, send over network device eth1 to the default gateway 192.168.0.1.