Internet is dying - diagnostics

[Xen]

post at volker-wysk.de schreef op 21-10-2017 15:26:

> desktop ~/Internetproblem $ sudo ./dhcp-discover -i enp2s0 -e
> 60:a4:4c:4e:17:47
> Ethernet hw addr to do discovery on : 60:a4:4c:4e:17:47
> 
>  - beginning of dump -
> DHCP operation          : request
> Hardware type           : ethernet
> Hardware address length : 6 bytes
> Hop count               : 0
> Transaction ID          : 0xdeadbeef
> Number of seconds       : 0
> Flags                   : 0x8000
> Client IP               : 0.0.0.0
> Your IP                 : 0.0.0.0
> Server IP               : 0.0.0.0
> Gateway IP              : 0.0.0.0
> Client hw addr          : 60:a4:4c:4e:17:47
> Server hostname         :
> Boot filename           :
> Options
>   Magic header          : 0x63825363 (OK)
>   Message type          : discover
>   Option 0x37           : len 7
>  - end of dump -

Normally this dump would contain responses from DHCP servers.

The only thing dhcp-discover requires is for the link to be up:

sudo ip link set enp2s0 up

But if you set it "down" it disappears from ifconfig, so that is not it.

So basically your entire hardware device stops working.

I don't know at this point how to test ethernet using ethtool.

This runs a self-test:

sudo ethtool -t enp2s0

sudo ethtool -S enp2s0 will also give error statistics.


Unless you:

- have another computer on the network with the same IP

It seems to me that you have a hardware failure.