Adding or removing scopes from an ISC DHCP failover relationship - User Guide - BlueCat Horizon

Adding scopes to failover relationships

There are two ways to add scopes to a failover relationship in the Web Application.

To add scopes to the relationship:

1. On the IPAM page, locate the scope in the list.
2. Use either the Action menu or the ellipses in the row to select Add scope to failover.
3. In the dropdown, select a failover relationship to add the scope to.
   
   
4. Select Confirm.

-OR-

1. Create a new scope and select the failover relationship during scope creation:
   
   

If the failover relationship was empty before the scope was added to it, the status will change from Empty to Normal.

Removing scopes from failover relationships

There are two ways to remove scopes from a failover relationship in the Web Application.

To remove a scope from a failover relationship:

1. Locate the specific scope on the IPAM page.
2. Use either the Action menu or the ellipses in the row to select Remove from failover.
   
   

After the scope is removed from the failover relationship:

• Decide whether to delete or disable the secondary scope.
• Upon removal, the failover peer statement is cleared from each pool in the scope.
• If the scope was the only one with the failover peer statement in its pools, the failover peer definition is removed.
• The failover relationship is marked as Empty, to be used later or removed.

-OR-

1. Locate the specific scope on the IPAM page.
2. Use either the Action menu or the ellipses in the row to select Manage scope instances.
3. In the dialog, use the ellipses in the row for the relevant server to select Remove scope instance.
   
   
4. Select Save.