The removed IPv6 address of VMkernel NIC adapter is back after ESXi host reboot.

Products

• VMware vSphere ESXi

Issue/Introduction

After a ESXi host reboot, the removed IPv6 address of VMkernel NIC adapter is back.

Environment

VMware vSphere ESXi 7.0.2

Cause

• The IPv6 address is not removed from the config store, where ESXi host persists the configuration of VMkernel NIC adapter.
• After ESXi host reboot, the IPv6 address is restored from config store.

Resolution

This issue is fixed in VMware vSphere ESXi 7.0.3

Workaround:

1. Export the config store into a file:

configstorecli config current get -c esx -g network -k vmknics -outfile tmp.json
 

2. Modify the file and remove the IPV6 address, for example, remove the following lines:

"ipv6_address": [
{
"address": "xxxx:x:xxx:xxxx::xx",
"prefix_length": 64
}
 

3. Update the config store using the file:

configstorecli config current set -c esx -g network -k vmknics -infile tmp.json