1-42Configuring a Loopback InterfaceFollow these steps to configure a loopback interface:To do… Use the command… RemarksEnter system view system-view —Create a loopback interfaceand enter loopback interfaceviewinterface loopbackinterface-number RequiredBind the loopback interface toVPN instanceip binding vpn-instancevpn-instance-nameRequiredBy default, an interface isassociated with no VPNinstance.Configure the address of theloopback interfaceip address ip-address { mask |mask-length } RequiredAdvertising Routes of a Loopback InterfaceFollow these steps to advertise routes of a loopback interface:To do… Use the command… RemarksEnter system view system-view —Enter BGP view bgp as-number RequiredEnter BGP VPN instance view ipv4-family vpn-instancevpn-instance-name RequiredInject direct routes, that is,loopback host routes import-route direct RequiredCreating a Sham LinkFollow these steps to create a sham link:To do… Use the command… RemarksEnter system view system-view —Enter OSPF viewospf [ process-id | router-idrouter-id | vpn-instancevpn-instance-name ] *—Configure the route tag route-tag tag-value RequiredEnter OSPF area view area area-id RequiredConfigure a sham linksham-link source-ip-addressdestination-ip-address [ costcost | dead dead-interval |hello hello-interval | retransmitretrans-interval | trans-delaydelay | simple [ cipher | plain ]password | { md5 | hmac-md5 }key-id [ cipher | plain ]password ]*RequiredBy default, no sham link isconfigured.
