Re: [gentoo-user] Brand new instalation - Network problem

[Dragostin Yanev]

On Sat, 26 Oct 2013 20:44:00 +0000
João Matos <jaoneto@×××××.com> wrote:

> Hi list,
>
> I`ve just installed a brand new gentoo amd64 and there is this
> problem: my "Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 06)" is
> recognized as *sit0* , but I can't get any IP Adress.
>
> dhcp takes long and doesn't get any result. dhcpcd doesn't work
> either. Even if I choose a manual address I cant ping other devices.
>
> When I used ifconfig, I got something like "ipv6 over ipv4", but I
> will only need ipv4. So I disabled ipv6 USE flag, but I didn't change
> anything. The weird thing is that if I disable the IPV6 kernel
> support (manual configuration btw), the network interface (sit0)
> desappears!
>
> When I reboot the system using a usb botable Ubuntu everything works
> fine, using the same hardware/infrastructure.
>
> I have no idea what is going on here, so, please, send me some links.
>
> Thank you all,
>

Hi João,

Let's do some basic troubleshooting.

look at the output of the following commands
 # lspci 
 # dmesg | grep -b2 -a2 -i ethernet
 # lsmod

This will hopefully help us determine if the correct driver is loaded.