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

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:
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 we persist 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