This Knowledge Base article provides the procedure to change the Orion Failover Engine principal IP address settings using the Server Configuration wizard.
All FOE versions
To change the principal IP address settings on a Orion Failover Engine server, follow the steps below:
In the principal IP address table, you list all of the addresses that will be used as principal IP addresses. Add a new row by clicking the Add Row icon to the left of the table and delete unwanted rows by clicking the Delete Row icon. Clicking the Trash can icon will delete the entire contents of the table. Select the Reset button to return to the original settings if required. An address should not appear more than once, and the principal IP addresses listed should not be the same as any of the IP addresses listed in the Channel panel.
The principal addresses configured for the primary and the secondary server must be identical. Any other 'private' addresses configured for primary or secondary network cards must be different. If you configure your network cards with a 'private' address in the same subnet as any of the principal addresses, check the routing tables to ensure the subnet is reachable when the principal IP traffic is blocked. Use the route print command to list the routing tables. If the principal address appears as the gateway for its subnet, then you may not be able to use other addresses on the same subnet when the IP traffic to the principal address is blocked, for example you may get no response when you ping the 'private' address from another machine. To fix this, reorder the IP addresses using the system's Network Connections window. The IP address at the top of the list is the one through which all traffic is routed.