Intel e1000e fix - Proxmox

fix.md

Fix Intel e1000e error

Please note - you may want to validate whether the options used affect your setup.

Create a new service file.

nano /etc/systemd/system/disable-offloading.service

Paste the required information/command in the newly created service file - please change eth0 to your desired adapter.

[Unit]
Description=Disable NIC offloading
After=network.target

[Service]
Type=oneshot
ExecStart=/sbin/ethtool -K eth0 gso off gro off tso off tx off rx off rxvlan off txvlan off sg off
RemainAfterExit=true

[Install]
WantedBy=multi-user.target

Load the new service file and enable on reboot.

systemctl daemon-reexec && systemctl daemon-reload && systemctl enable disable-offloading.service

FYI, you're better off handling this in /etc/systemd/network/10-eth0.link, not as a Service Unit. This will work for systemd version > 256.

[Match]
MACAddress=00:12:34:56:78:90

[Link]
ReceiveChecksumOffload=no
TransmitChecksumOffload=no
TCPSegmentationOffload=no
TCP6SegmentationOffload=no
GenericSegmentationOffload=no
GenericReceiveOffload=no
GenericReceiveOffloadHardware=no
ReceiveVLANCTAGHardwareAcceleration=no
TransmitVLANCTAGHardwareAcceleration=no
ReceiveVLANCTAGFilter=no
TransmitVLANSTAGHardwareAcceleration=no

Or, alternatively, on Debian-based systems, using /etc/network/interfaces:

iface eth0 inet manual
        post-up /sbin/ethtool -K $IFACE gso off gro off tso off tx off rx off rxvlan off txvlan off sg off