PPP Design, Implementation, and Debugging, Second Edition is a complete resource and convenient for network system designers and administrators. Extensively revised and expanded to cover the latest developments in the PPP and network technology, this Second Edition addresses current topics such as: PPP * in today's telecommunication infrastructure and telephony * * PPP Optical (SONET / SDH), PPP links * The relationship between the PPP and routing protocols (such as OSPF) * Security services, including RADIUS * PPP and L2TP virtual private networks * Design of ppp-2.3 ANU popular implementation of PPP Design, Implementation, and Debugging, Second Edition provides an overview of PPP design and operation, and follows the PPP in detail through each of the three main stages - the link establishment, authentication, and data transmission. Each PPP protocol is described in depth, including LCP (Link Control Protocol), CCP (Compression Control Protocol), and ECP (Encryption Control Protocol).