I'm running a NAT with ports
The WAN port (em1) resets with "Detected Hardware Unit Hang" when I transfer large (about 1GB) files from a LAN connected machine through the NAT server. I can easily reproduce the failure, happens in less than a minute. Disabling EEE (
ethtool -set-eee em1 off) does not help.
ethtool -K em1 tso off)
ethtool -s em1 speed 100 duplex full)