Network problem

[manin]

Hallo, I use FC7
I try to ping, or install packages from terminal, but it can't see internet.
If I go through mozilla, it go it is ok.
Through terminal I get usually message : network is unreachable

I have add "nameserver (mydns)", in resolve.conf
with route -n I get:
Destination--------Gw---------Netmask--------Flags--Metric--Ref----Use---Iface
192.168.1.0---192.168.1.8---255.255.255.0---UG------0------0------0-----eth1
192.168.1.0---0.0.0.0---255.255.255.0---------U-------0------0------0-----eth1
127.0.0.0---127.0.0.1---255.0.0.0---------------UG------0------0-----0------lo

Also if I give :
#nmap 127.0.0.1
-bash: nmap: comand not found

What is going wrong?



I made a reboot
Now I can't work from mozilla either.
In nmap the 3rd line does not exist