Had some troubles with an ESXi 5.5 host the past week and rebuilt some of the networking which included removing a vmkernel and re-adding to a standard vSwitch and then setting up VMotion and Management tags on it.
Came across the following error on my host in vSphere Client:
To resolve this issue, I needed to make sure that there is a default gateway on the port group that the VMotion vmkernel is on.
Click on the ESXi Host then navigate to Configuration > Networking and on the VMkernel Port that I’m using for VMotion, click Properties…
Next, I examine properties of the VMotion VMkernel.
Looking at the IP Settings tab, I see there is no VMkernel Default Gateway defined, so I clicked Edit…
I entered in my default gateway and clicked OK and then OK again to exit the switch properties dialog.
Finally, I right-click on the ESXi host and click Reconfigure for vSphere HA
At this point, no additional errors are reported for my ESXi host. =)
Virtualization