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