eth0 ceases to function after reboot on FC5T3
David Timms
dtimms at bigpond.net.au
Sun Feb 26 03:22:11 UTC 2006
Dane Mutters wrote:
> Thanks for the suggestions, Dave. Here's some info:
>
>> Can you give the result of ifconfig ?
>
> eth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
> inet addr:192.168.1.112 Bcast:192.168.1.255 Mask:255.255.255.0
I don't think I have seen any machine not show the MAC address properly;
this one (HWaddr) does not seem legit, but I have no idea why.
...
> peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
> inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
> UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1
> RX packets:12227 errors:0 dropped:736 overruns:0 frame:0
> TX packets:610 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:914379 (892.9 KiB) TX bytes:44795 (43.7 KiB)
> Interrupt:11 Base address:0x2c00
>
> vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
> inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:255 errors:0 dropped:0 overruns:0 frame:0
> TX packets:11682 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:12811 (12.5 KiB) TX bytes:869926 (849.5 KiB)
>
> xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
> inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:12157 errors:0 dropped:0 overruns:0 frame:0
> TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:725575 (708.5 KiB) TX bytes:468 (468.0 b)
...
So you are doing the xen thing, or did you not mean to install xen ?
Maybe try uninstalling the xen parts: again, I have no experience with this.
>> When you said currently: what method have you been using to try
>> different ethernet settings ?
>
> I have tried using static and DHCP. Currently I'm using static.
What I meant was are you hand editing config files or are you using
system-config-network (System|Admin|Network) ?
# rpm -q system-config-network
What does system-config-network|eth0|edit|hardware device|Mac address show ?
Is the bind to MAC address ticked ?
Does clicking probe update / put in a real address ?
>> What is the ethernet adapter ?
> Linksys NC100 Network Everywhere Fast Ethernet 10/100 (rev. 11)
Under what OS was the card last working ?
If you dual boot, does the card work OK in the other OS ?
Is this an upgrade install ?
...
>> What is the result of lspci ?
...
> 01:09.0 Ethernet controller: Linksys NC100 Network Everywhere Fast Ethernet
...
>> How about lsmod ?
>
> Module Size Used by
...
> tulip 52449 0
...
I can only guess that tulip is the correct driver for your card
If another linux used previously was it previously using the tulip module ?
Can you find out which eth chip your linksys card actually uses ?
>> I don't know, perhaps there is an error being logged in
>> /var/log/messages ? grep eth0 /var/log/messages that can shed more light
>> on the problem.
>
> Feb 24 10:30:41 Spot kernel: eth0: ADMtek Comet rev 17 at cf076c00,
> 00:04:5A:55:96:57, IRQ 11.
> Feb 24 10:30:45 Spot kernel: eth0: Setting full-duplex based on MII#1 link
> partner capability of 45e1.
It seems to be detecting the link carrier, and going in full duplex OK.
Is the netcard and switch / hub showing link activity ?
> Feb 24 02:32:18 Spot kernel: peth0: Promiscuous mode enabled.
> Feb 24 02:32:18 Spot kernel: device peth0 entered promiscuous mode
Someone else know if this is normal for xen installs ?
(this is normal when doing packet captures, but why here ?)
...
>> In any case to make a bugzilla report you would need to provide info
>> like the above; might as well provide it here first, so that there is
>> enough info for others to help/refer you to bugzilla etc. Also, perhaps
>> provide the age and manufacturer/model of the machine (or component
>> parts if hand assembled).
>
> It's a 6-year-old Gateway with a Pentium 3 800MHz processor.
>
> Also, I seem to have forgotten an important detail. I get this error message
> when disabling the device (eth0) in the network configuration tool in Gnome:
>
> Device eth0 has MAC address FE:FF:FF:FF:FF:FF, instead of configured address
> 00:04:5A:55:96:57. Ignoring.
Do you know/can you find out the correct address and enter it in
sys-con-network, in the area mentioned above ?
My guess is: for some reason the tools aren't able to retrieve the
correct MAC address. Your machine will happily send out data with a
return MAC address that is incorrect, which the eth driver ignores
(since not destined to itself), leaving you in network isolation.
> Hope that helps!
As you can see it's not a one step troubleshooting process ;-)
DaveT.
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