Usage Meter 9.1 UI inaccessible due to network configuration failure after upgrade

Products

• VMware Usage Meter

Issue/Introduction

• After upgrading VMware Usage Meter from 9.0 to 9.1, the Usage Meter web UI is inaccessible.
• The appliance summary page in vCenter may show that the IP address is not assigned or is incorrectly set to the MAC address.

Environment

VCF Usage Meter 9.x

Cause

After an upgrade to version 9.1 the network configuration file (/etc/systemd/network/10-eth0.network) specifically, missing [Match] parameters or incorrect LinkLocalAddressing settings prevent systemd-networkd from successfully binding to the network interface, causing the network stack initialization to fail.

Resolution

To restore connectivity, you must manually correct the 10-eth0.network configuration file.

1. Log in to the Usage Meter appliance as root via SSH or the console.
2. Open the network configuration file for editing:
   vi /etc/systemd/network/10-eth0.network
   
    
3. Ensure the file contains the following configuration blocks, modifying the specific IP/DNS/Gateway values to match your environment:
    

   [Match]

   Name=eth0

   
   [Network]

   LinkLocalAddressing=no

   IPv6AcceptRA=no

   DHCP=no

   DNS=##.##.##.##

   Address=##.##.##.##/##

   
   [DHCPv4]

   UseDNS=no

   SendRelease=no

   
   [DHCPv6]

   UseDNS=no

   SendRelease=no

   
   [Route]

   Gateway=##.##.##.##

    
   Note: Ensure LinkLocalAddressing is set to no.
   
   
4. Save and exit the file.
5. Verify that the IP address assigned now.