Voyager Reference Guide 197Loopback InterfacesAdding an IP Address to a Loopback InterfaceYou might want to assign an address to the loopback interface that is the sameas the OSPF router ID, or is the termination point of a BGP session. Thisallows firewall adjacencies to stay up even if the outbound interface is down.NoteThe loopback interface always has a logical interface created andenabled.1. Click CONFIG on the home page.2. Click the Interfaces link.3. Click the loopback logical interface link in the L OGICAL column(loop0c0).4. To add an IP address, enter the IP address for the device in the NEW IPADDRESS edit box. Click APPLY.Each time you click A PPLY, the configured IP address appears in thetable. The entry fields remain blank to allow you to add more IPaddresses.To make your changes permanent, click SAVE.Changing the IP Address of a Loopback Interface1. Click CONFIG on the home page.2. Click the Interfaces link.3. Click the loopback logical interface link in the L OGICAL column(loop0c0).
