underlying-interface (Dynamic PPPoE)
Syntax
underlying-interface interface-name;
Hierarchy Level
[edit dynamic-profiles profile-name interfaces pp0 unit “$junos-interface-unit” pppoe-options]
Description
In a dynamic profile, configure the underlying interface on which the router creates the dynamic PPPoE logical interface.
Options
interface-name—Variable used to specify the name of the underlying interface
on which the PPPoE logical interface is dynamically created. In the underlying-interface interface-name statement
for dynamic PPPoE logical interfaces, you must use the predefined
variable $junos-underlying-interface in place of interface-name. When the router creates the dynamic
PPPoE interface, the $junos-underlying-interface predefined
variable is dynamically replaced with the name of the underlying interface
supplied by the network when the subscriber logs in.
Before you make any changes to the underlying interface for a demux0 interface, you must ensure that no subscribers are currently present on that underlying interface. If any subscribers are present, you must remove them before you make changes.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 10.1.