Deploying Vpn - ZyXEL Communications ZYWALL USG 1000 Support Notes

1. Deploying VPN

VPN (Virtual Private Network) allows you to establish a virtual direct connection to remote
locations or for the telecommuters to access the internal network in the office. VPN is a
replacement for the traditional site-to-site lease lines like T1 or ISDN. Through the VPN
applications, it reduces setup cost, works for various types of Internet connection devices
(ISDN modem, ADSL modem and FTTX...) and is easy to troubleshoot.
VPN gives you site-to-site connection flexibility. However, with multiple VPN connections
between sites, it can become more difficult to maintain. Typically, an administrator has to
configure many site-to-site VPN connections to allow a truly global VPN network.
VPN connection management is made easily using the VPN concentrator. The VPN
All contents copyright (c) 2007 ZyXEL Communications Corporation.
ZyWALL USG 1000 Support Notes
8