Linux VPN Masquerade HOWTO
$Revision: 2.19 $ $Date: 2000-10-22 12:07:43-07 $
How to configure a Linux firewall to masquerade
IPsec- and PPTP-based Virtual Private Network traffic, allowing you to
establish a VPN connection without losing the security and flexibility of
your Linux firewall's internet connection and allowing you to make
available a VPN server that does not have a registered internet IP address.
Brief information on configuring the VPN client and server is also given.