Nokia Network Voyager Reference Guide for IPSO 6.0 - Check Point

Loopback Interfacesa secure private network. In addition, the appliances are configured to create VLAN-taggedmessages for output.Multiple VLANs onsingle cableGSRswitchgigabitEthernetNOK/CPFW-1gigabitEthernetVLANswitchVRRPpairFW-1syncVRRPpairGSswitchgigabitEthernetNOK/CPFW-1gigabitEthernetVLANswitchUn tagged VLAN tagged Un tagged00203Loopback InterfacesBy default, the loopback interface has 127.0.0.1 configured as its IP address. Locally originatedpackets sent to this interface are sent back to the originating process.You might want to assign an address to the loopback interface that is the same as the OSPFfirewall ID, or is the termination point of a BGP session. This allows firewall adjacencies to stayup even if the outbound interface is down. Do not specify an IP subnet mask length when youadd addresses to the loopback interface.To add an IP Address to a Loopback InterfaceYou might want to assign an address to the loopback interface that is the same as the OSPFrouter ID, or is the termination point of a BGP session. This allows firewall adjacencies to stayup even if the outbound interface is down.NoteThe loopback interface always has a logical interface created and enabled.1. Click Interfaces under Configuration > Interface Configuration in the tree view.2. Click the loopback logical interface link in the Logical column (loop0c0).Nokia Network Voyager Reference Guide for IPSO 6.0 41