Change Default Gateway

These procedures allow you to manage the default gateway by:

• Changing the default gateway network

• Changing the default IP Address

The Change Gateway Network procedure allows dual network configuration users to change the default gateway from the Control Plane (CP) network interface to the Workload Plane (WP) network interface. It is necessary if the CP Network loses its routing capabilities after network modifications.

The Change Gateway IP Address procedure allows you to change the default gateway IP address based on your network configuration.

After changing an element concerning the default gateway, you must restart the NetworkManager service to apply the changes.

Change Gateway Network

This procedure allows you to change the default gateway network based on your network configuration.

Note

This procedure cannot be applied to a single network configuration.

Dual Network

Bondings (2 x 2 ports)

1. Open NetworkManager’s tool.

   [artesca-os@bootstrap ~]$
   

   sudo nmtui
   

2. Click Edit a connection to display the list of connections.

3. Select the bonding that is currently the default gateway and click Edit.

4. Delete the default gateway IP address from the bonding.

5. Click Add to add the default gateway network to the other bonding.

6. Restart the NetworkManager service.

Bonding + VLAN tagging (2 ports)

1. Open NetworkManager’s tool.

   [artesca-os@bootstrap ~]$
   

   sudo nmtui
   

2. Click Edit a connection to display the list of connections.

3. Select the VLAN that is currently the default gateway and click Edit.

4. Delete the default gateway IP address from the VLAN.

5. Click Add to add the default gateway network to the other VLAN.

6. Restart the NetworkManager service.

Change Gateway IP Address

This procedure allows you to change the default gateway IP address. Follow the procedure according to your network configuration either Single Network or Dual Network.

Single Network

Bonding (2 ports)

1. Open NetworkManager’s tool.

   [artesca-os@bootstrap ~]$
   

   sudo nmtui
   

2. Click Edit a connection to display the list of connections.

3. Select the bonding that is currently the default gateway and click Edit.

4. Change the default gateway IP address.

5. Restart the NetworkManager service.

VLAN tagging (2 ports)

1. Open NetworkManager’s tool.

   [artesca-os@bootstrap ~]$
   

   sudo nmtui
   

2. Click Edit a connection to display the list of connections.

3. Select the VLAN that is currently the default gateway and click Edit.

4. Change the default gateway IP address.

5. Restart the NetworkManager service.

Dual Network

Bondings (2 x 2 ports)

1. Open NetworkManager’s tool.

   [artesca-os@bootstrap ~]$
   

   sudo nmtui
   

2. Click Edit a connection to display the list of connections.

3. Select the bonding that is currently the default gateway and click Edit.

4. Change the default gateway IP address.

5. Restart the NetworkManager service.

Bonding + VLAN tagging (2 ports)

1. Open NetworkManager’s tool.

   [artesca-os@bootstrap ~]$
   

   sudo nmtui
   

2. Click Edit a connection to display the list of connections.

3. Select the VLAN that is currently the default gateway and click Edit.

4. Change the default gateway IP address.

5. Restart the NetworkManager service.

Restart NetworkManager Service

Restart the NetworkManager service to apply changes.

[artesca-os@bootstrap ~]$

sudo systemctl restart NetworkManager

Important

With this new configuration, the administrator must be in the CP network as it is no longer routed.