[CentOS] Loss of Ethernet adaptor

[Alexander Dalloz]

Am 06.06.2014 14:50, schrieb James B. Byrne:
> At ~07:40 (UTC-4:00) this morning our gateway host lost its WAN Ethernet
> adaptor.  Subsequent to recovery, which required a reboot, the following

[ ... ]

> lspci -tv                  # provides this device tree
>
> -[0000:00]-+-00.0  Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx DMI
> Bridge
> . . .
>             +-1c.0-[01]--
>             +-1c.4-[02]----00.0  Intel Corporation 82574L Gigabit Network
> Connection
>             +-1c.5-[03]----00.0  Intel Corporation 82574L Gigabit Network
> Connection
> . . .
>
>
>
> lspci -v -nn -k -qq -D     # provides this information:
>
> . . .
> 0000:02:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit
> Network Connection [8086:10d3]
> 	Subsystem: Super Micro Computer Inc Device [15d9:10d3]
> 	Physical Slot: 0-1
> 	Flags: bus master, fast devsel, latency 0, IRQ 16
> 	Memory at fe9e0000 (32-bit, non-prefetchable) [size=128K]
> 	I/O ports at dc00 [size=32]
> 	Memory at fe9dc000 (32-bit, non-prefetchable) [size=16K]
> 	Capabilities: [c8] Power Management version 2
> 	Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
> 	Capabilities: [e0] Express Endpoint, MSI 00
> 	Capabilities: [a0] MSI-X: Enable+ Count=5 Masked-
> 	Capabilities: [100] Advanced Error Reporting
> 	Capabilities: [140] Device Serial Number 00-25-90-ff-ff-61-74-c0
> 	Kernel driver in use: e1000e
> 	Kernel modules: e1000e
> . . .
>
> I have never run into this before.  Can anyone cast any light on what might be
> going on?  Is this an incipient hardware failure with one of the on-board PCI
> Ethernet adaptors?  Is there any relationship with the syn flood that was
> blacklisted immediately before the failure?  I do not thinks so but I need to
> ask.
>
> Thanks,

https://isc.sans.edu/forums/diary/Intel+Network+Card+82574L+Packet+of+Death/15109

http://www.itwalker3.com/2013/02/packet-of-death-attack-a-deadly-dos-against-intel-nics/

Worth to verify in your case.

Alexander