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Re: eth0 - eth1 confusion vs. local network



On Sun, 07 Feb 2010 13:36:13 -0800, Frank Miles wrote:

> [snip]
> 
>>I fail to see what it's doing, but I cannot see any reference to "eth1",
>>it's like only one interace is being recognized :-?
>>
>>What is the output of "dmesg | grep eth"?
> 
> [    6.317161] eth1: RTL8168d/8111d at 0xffffc90000c4e000,xx:xx:xx:xx:xx:xx, XID 083000c0 IRQ 32 
> [    6.384830] eth1: unable to apply firmware patch 
> [    7.190453] udev: renamed network interface eth1 to eth0 
> [    7.229390] udev: renamed network interface eth0_rename to eth1 
> [   11.276999] r8169: eth0: link up
> [   11.277005] r8169: eth0: link up
> [   12.215716] eth1:  setting full-duplex. 
> [   21.531029] eth0: no IPv6 routers present 
> [   22.599867] eth1: no IPv6 routers present
> 
> Again, eth1 is working fine; eth0 seems completely
> blocked/nonfunctional, despite all the configuration files and netstats
> looking fine.

Errr, sir... something goes wrong here.

As per your "/etc/udev/rules.d/70-persistent-net.rules":

eth0 -> realtek
eth1 -> 3com

But that is not what dmesg says above.

Also, there is no "link up" or "link down" for eth1 but *both" eth0 going 
up. Not sure how to interpret that.
 
> I made a minor effort earlier to suppress the IPv6 modules, but [a]
> didn't succeed; and [b] hadn't suppressed them earlier with the
> one-interface system so wasn't convinced it was worth trying - why
> shouldn't this cause eth1 to quit as well as eth0?  Also the previous
> system showed some indications of IPv6 in its reports, and it worked
> fine.

I don't think this issue can have any relation with ipv6 :-?. 

How about your "/etc/network/interfaces"? 

Besides, you can make a quick probe by disabling "eth1" and test if the 
network works as expected ("ping" et al) and then disable "eth0" and 
perform the same test. I mean, test the network adapters "separately".

Greetings,

-- 
Camaleón


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