Designing Network Security Second Edition

Chapter 11. Securing Remote Dial-In Access

Remote access environments include VPN networks, wireless networks, and dial-in connections. VPN networks and wireless networking scenarios are covered in the next chapter. This chapter examines how to secure the remote dial-in connections coming into the corporate network. Often, corporate networks encompass both privately connected dial-in infrastructures (direct dial-in) and public data infrastructures (virtual private dial-in networks). Virtual private dial-in networks (VPDNs) refer to outsourced services from Internet service providers (ISPs) to deliver remote access to corporate users. The ISP recognizes that a particular client belongs to an enterprise and handles the client such that the network ...