The Instant Broadband EtherFast Cable/DSL VPN Router from Linksys is the ideal solution for remotely accessing a network securely over the Internet using cutting edge encryption and authentication methods. Built from the popular standard Linksys 4Port Router Model BEFSR41, the VPN Router expands its functionality and security features by utilizing 56bit DES and 168bit 3DES encryption, and Internet Key Exchange (IKE). A built-in IPSec coprocessor from Hifn allows for complete data privacy for the access and exchange of your most sensitive data from your home to your corporate network or between remote branch offices without the additional cost of IPSec VPN client software for each computer. Mobile workers can also connect to a corporate network using an IPSec based VPN client software solution. The EtherFast Cable/DSL VPN Router is capable of conducting up to 70 simultaneous IPSec VPN tunnels while allowing additional savings with no upgrade fees or technical support costs.