Configuring loopback interfaces for F5 load balancing - BlueCat Address Manager - 9.2.0

In order for F5 load balancing to be configured properly, the Virtual IP address (VIP) of the LTM server must be set as the loopback interface on DNS/DHCP Servers in the F5 pool.

1. From the configuration drop-down menu, select a configuration.
2. Select the Servers tab. Tabs remember the page you last worked on, so select the tab again to ensure you're on the Configuration information page.
3. Click the server or xHA pair name menu button and select Service Configuration.
4. From the Service Type drop-down menu, select Interfaces. Address Manager queries the server and returns the current interface configurations.
5. Under the Interface column, choose the eth0 interface then navigate across the row to the Action column and click Edit.
   Note: The Interface, Type, IPv4 Primary and IPv6 Primary fields are automatically populated and can't be edited. If running an xHA pair, you will see the IPv4 PIP field, which also can't be edited. The IPv4 PIP is the IPv4 address configured on Service interface (or Management interface if Dedicated Management is enabled) on the Active or Passive node.
6. Complete the following:
   • In the Description field, enter a name for the new loopback address. You can enter up to 80 alphanumeric characters including spaces, but excluding special characters.
   • In the Address/CIDR field, enter the VIP of the LTM server using CIDR notation. For example, 192.0.2.100/32. This will be the loopback address assigned to the Service interface of the DNS/DHCP Server.
     Note: Only a /32 is a valid CIDR value for loopback addresses.
   • Click Add Address. The loopback address appears in the Addresses list. Add additional loopback addresses as needed. To delete an address, select a loopback address from the Addresses list and click Remove.
7. Click OK.
8. Under Addresses, expand to view the newly added loopback address.