Public bug reported:

All of the following match options:

####################
[Match]
#Type=vxlan
#Driver=vxlan
Path=*

[Link]
GenericReceiveOffload=off
########################

lead to:

ethtool -k vxlan2009 |grep generic-receive
generic-receive-offload: on

I would expect the the option to be off.


IDX LINK           TYPE     OPERATIONAL SETUP     
  1 lo             loopback carrier     unmanaged 
 25 vxlan2009      vxlan    carrier     configured
 26 vxlan2009.0099 vlan     carrier     configured


vxlan2009.netdev:
[NetDev]
Name=vxlan2009
Kind=vxlan
MTUBytes=8950

[VXLAN]
Id=2009
Group=239.1.1.43
MacLearning=1
DestinationPort=4789

vxlan2009.network:
[Match]
Name = vxlan2009

[Link]
MTUBytes = 8950

[Network]
VLAN=vxlan2009.0099
DHCP = no
LinkLocalAddressing = no

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: systemd 245.4-4ubuntu3.4
ProcVersionSignature: Ubuntu 5.4.0-65.73-generic 5.4.78
Uname: Linux 5.4.0-65-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Feb  7 13:47:30 2021
MachineType: QEMU Standard PC (Q35 + ICH9, 2009)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-65-generic 
root=UUID=97786d27-c04a-4592-a087-f19a689468a9 ro console=tty1 console=ttyS0
SourcePackage: systemd
UpgradeStatus: Upgraded to focal on 2020-08-27 (163 days ago)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: rel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-q35-5.1
dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org:bd04/01/2014:svnQEMU:pnStandardPC(Q35+ICH9,2009):pvrpc-q35-5.1:cvnQEMU:ct1:cvrpc-q35-5.1:
dmi.product.name: Standard PC (Q35 + ICH9, 2009)
dmi.product.version: pc-q35-5.1
dmi.sys.vendor: QEMU

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal uec-images

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https://bugs.launchpad.net/bugs/1914928

Title:
  GenericReceiveOffload in .link file ignored by systemd-networkd

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