Configuring Point-to-Point Protocol

This chapter describes how to configure a Point-to-Point Protocol (PPP) interface on E Series routers.

This chapter contains the following topics:

• Understanding PPP
• Understanding PPP Link Control Protocol
• Broadband Remote Access Support for PPP Overview
• Understanding Extensible Authentication Protocol
• Remote Peer Scenarios During Negotiation of PPP Options
• IPCP Lockout and Local IP Address Pool Restoration Overview
• IPCP Negotiation with Optional Peer IP Address Overview
• Processing NCP Negotiations in a Dual-Stack Environment Overview
• Overview of Processing IPCP Negotiations for Dual-Stack Subscribers
• Releasing IPv4 Addresses During Termination of PPP Sessions
• IPCP Renegotiation of IPv4 Addresses for Dual-Stack Subscribers
• PPP Platform Considerations
• PPP References
• Configuring PPP over a Serial Interface
• Overview of Sequencing NCP Packets for POS Interfaces with PPP Encapsulation
• Sequencing NCP Packets for POS Interfaces with PPP Encapsulation
• Configuring Optional PPP Configuration Tasks
• Adding a Description or Alias for a Static PPP Interface
• Configuring the IPCP Lockout Option for Each PPP Interface
• Configuring the IPCP Netmask Option for Each PPP Interface
• Configuring the KeepAlive Timeout for an Interface
• Disabling the Negotiation of the Local Magic Number
• Configuring the Router to Ignore a Mismatch of the Peer Magic Number
• Configuring the Maximum Number of Renegotiation Attempts from a PPP Client
• Configuring the Maximum Receive Unit for PPP
• Forcing the PPP Interface into a Passive Mode
• Configuring the PPP Peer to Take Precedence of DNS and WINS Addresses
• Configuring the PPP IP Address as Optional in an IPCP Request
• Terminating the PPP Session
• Configuring PPP Authentication
• Requesting Authentication from a PPP Peer
• Configuring IPCP Renegotiations in a Dual-Stack Network for Optimal Utilization of Released IPv4 Addresses
• Modifying the Challenge Length for CHAP Authentication
• Configuring the Maximum Retries for PAP and CHAP Authentication
• PPP Accounting Statistics Overview
• Setting a Baseline for PPP Interface Statistics
• Monitoring PPP Interfaces
• Monitoring Multilinked and Nonmultilinked PPP Interfaces
• Monitoring the Status of an IP Address in IPCP Configuration
• Monitoring AAA IPv4 Address Saving
• Troubleshooting PPP Interfaces
• Monitoring the Maximum Timeout of PPP Sessions