ISP Planet - Technology - The IPsec Remote Access Conundrum Part 1: Extended Authentication - page 1 The Remote Access Conundrum Part 1:
Extended Authentication
Can ISPs offer the security of IPsec-based remote access VPNs without the expense of building (or buying) massive Public Key authentication systems? "Hybrid Authentication," a refinement of XAUTH, offers one solution, but standards issues have muddied those waters.
Lisa Phifer
VP Core Competence, Inc.