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Re: eth0 keeps dropping its IP address



--- On Thu, 11/27/08, Robert P. J. Day <rpjday crashcourse ca> wrote:

> From: Robert P. J. Day <rpjday crashcourse ca>
> Subject: eth0 keeps dropping its IP address
> To: "Fedora List" <fedora-list redhat com>
> Date: Thursday, November 27, 2008, 5:44 AM
> on a newly-installed F10 laptop, i statically assigned an IP
> address
> to eth0 for use on an isolated network but whenever
> there's no other
> system on the network, the laptop simply drops its IP
> address, and i
> have to reactivate it manually with "ifup eth0".
> 
>   is this normal?  if the interface is statically assigned,
> why would
> it decide to drop its address?  or is there something else
> at play
> here?
> 
> rday
> --
> 
> ========================================================================
> Robert P. J. Day
> Linux Consulting, Training and Annoying Kernel Pedantry:
>     Have classroom, will lecture.
> 
> http://crashcourse.ca                          Waterloo,
> Ontario, CANADA
> ========================================================================
> 
> -- 

There might be, which Ethernet Card do you have?

do a dmesg and look for messages like:

r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
r8169 0000:02:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
r8169 0000:02:00.0: setting latency timer to 64
r8169 0000:02:00.0: no MSI. Back to INTx.

r8169: eth0: link down

Then restart the network and check again with dmesg.  

In my case, my machine freezes for no apparent reason.

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)

I have blacklisted r8169 module and still freezes :(
It might be a hardware issue or in case the network went down and then came back up?

Regards,

Antonio 


      


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