NSX Manager node unreachable over the network following a reboot
search cancel

NSX Manager node unreachable over the network following a reboot

book

Article ID: 435023

calendar_today

Updated On:

Products

VMware NSX

Issue/Introduction

Following a reboot, an NSX Manager virtual machine becomes unreachable over the network, and you are unable to establish connectivity to the node.

Symptoms observed include:

  • Ping requests from a local workstation to the affected NSX Manager fail.

  • From the NSX Manager console, the node is unable to reach its configured default gateway (e.g., X.X.X.1).

Environment

  • Product: VMware NSX

  • Component: NSX Manager

Cause

The network unreachability is caused by an incorrectly configured Default Gateway IP address on the management interface. In this scenario, the gateway address falls outside the subnet boundary of the configured management IP and network mask. This subnet mismatch prevents the manager from properly routing outbound traffic.

Resolution

To restore connectivity, you must reconfigure the management interface with the correct IP address, netmask, and default gateway to match the functional nodes in your cluster.

  1. Log in to the NSX Manager command line console.

  2. Execute the following commands to update the interface and routing:

ifconfig eth0 <IP_ADDRESS> netmask <NETMASK>
route add default gw <GATEWAY>

Note: Ensure the gateway address is within the local subnet of the manager node. 

Powered by Wolken Software