Recently I see that I often lose internet connectivity on my Linux machines. I am starting to think that it may be a router problem, but I have no idea to check if this is indeed the problem.
Basically what happens is that if I type
ifconfig I get the list of all the interfaces, but none of them have an assigned IP address. Even when I use
dhclient to pull a random IP address, I still am not able to ping or surf the web.
This is an example of
eth0 Link encap:Ethernet HWaddr 08:00:27:b3:da:a1 inet6 addr: fe80::a00:27ff:feb3:daa1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:7 errors:0 dropped:0 overruns:0 frame:0 TX packets:25 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1351 (1.3 KB) TX bytes:6466 (6.4 KB)
How can I troubleshoot internet connectivity issues? What files do I have to look at?