Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual page 519

5.
6.
interface loopback
ip address
ip unnumbered
ip virtual-router
host1(config-subif)#pppoe
Configure the interface to detect and accept dynamic PPPoE subinterfaces.
host1(config-subif)#pppoe auto-configure
Assign the profile to any autoconfigured encapsulation.
host1(config-if)#pppoe profile any ipv4Ipv6Profile
Use to access and configure the loopback interface.
Provides a stable address to minimize impact of a physical interface going down.
Example
host1(config)#interface loopback 20
host1(config-if)#ip address 10.10.20.5 255.255.255.254
Use the no version to delete the loopback interface.
See interface loopback.
Use to assign an IP address and subnet mask to a subinterface.
Example
host1(config-if)#ip address 10.10.20.5 255.255.255.254
Use the no version to remove an IP address or to disable IP processing.
See ip address.
Use to specify the numbered interface with which dynamic unnumbered
interfaces created with the profile are associated.
You can specify an unnumbered interface using RADIUS instead of using the ip
unnumbered command in a profile. For more information about how to specify
an unnumbered interface using RADIUS, see Configuring RADIUS Attributes in
the JUNOSe Broadband Access Configuration Guide.
Example
host1(config-profile)#ip unnumbered fastEthernet 0/0
Use the no version to remove the assignment from the profile.
See ip unnumbered
Configuring PPPoE Dynamic Interfaces over PPPoE Static Interfaces
Chapter 15: Configuring Dynamic Interfaces
489