Summary
VPNs have greatly enhanced the ability of users to remotely access corporate networks while on the road or away from the office. Wireless networks can leverage the technology investments in a VPN solution by forcing all wireless clients to authenticate with the VPN. This is done by placing the entire wireless network outside the firewall and allowing only VPN traffic to pass through. In this way, all wireless clients are logically equivalent to remote access users.
VPN technology has a strong track record and proven reliability as a replacement for dial-up users. In a Microsoft environment, you will need to choose between PPTP and L2TP/IPSec authentication methods. While L2TP/IPSec provides greater security, its requirement of a PKI infrastructure ...
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