HP VPN Firewall Appliances Network Management Configuration Guide

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Configuring PPP
PPP can be configured only at the CLI.
Feature and hardware compatibility
Hardware PPP com
p
atibilit
y
F1000-A-EI/F1000-S-EI
Yes only in dialer interface view and virtual template (VT) interface
view
F1000-E Yes only in VT interface view
F5000 Yes only in VT interface view
F5000-S/F5000-C Yes only in VT interface view
VPN firewall modules Yes only in VT interface view
20-Gbps VPN firewall modules Yes only in VT interface view
This document uses PPP configuration on VT interfaces as an example, which is similar to that on dialer
interfaces.
Overview
Point-to-Point Protocol (PPP) is a link layer protocol that carries network layer packets over point-to-point
links. PPP provides user authentication, supports synchronous/asynchronous communication, and allows
for easy extension.
PPP includes the following protocols:
• Link control protocol (LCP)—Establishes, tears down, and monitors data links.
• Network control protocol (NCP)—Negotiates the packet format and type for data links.
• Authentication protocols—Provide network security. Protocols include Password Authentication
Protocol (PAP), Challenge Handshake Authentication Protocol (CHAP), Microsoft CHAP
(MS-CHAP), and Microsoft CHAP Version 2 (MS-CHAP-V2).
PPP link establishment process
Figure 60 shows the PPP link establishment process.