Guardium network interface error after system board replacement

If you receive an error message after a hardware repair, reset the network parameters.

Symptoms

After a hardware repair such as replacing the system board on the Guardium appliance, the network connectivity is lost. The following error message occurs for each network interface when the appliance is rebooted.

rtnetlink answers: no such device

Causes

After you replace the system board, the MAC address will change. This change causes a disparity between the actual MAC address and what is stored in the interface configuration files.

Environment

Any Guardium appliance (collector, aggregator, or central manager) on which the system board has been replaced and all Guardium versions are impacted.

Resolving the problem

Log in to the appliance from the console as user CLI and reset the network parameters by running the following commands.



store network interface reset
store network interface ip <IPv4 or IPv6 address>/prefix
store network routes defaultroute <IPv4 or IPv6 gateway address>
store network resolvers <IPv4 or IPv6 address> [IPv4 or IPv6 address]  [IPv4 or IPv6 address]
restart network

If the problem is still not resolved, contact Guardium Support for manual intervention.