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
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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/...
http://www.itwalker3.com/2013/02/packet-of-death-attack-a-deadly-dos-against...
Worth to verify in your case.
Alexander