Prerequisites for Configuring PPP
You must be in a user group associated with a task group that includes the proper task IDs. The command reference guides include the task IDs required for each command. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Before you can configure PPP authentication on a POS or serial interface, be sure that the following tasks and conditions are met:
Your hardware must support POS or serial interfaces.
You have enabled PPP encapsulation on your interface with the encap ppp command, as described in the appropriate module: