Casio ISA550WBUN3K9 manual About VPNs

VPN	8
About VPNs

About VPNs

A VPN provides a secure communication channel (also known as a “tunnel”) between two gateway routers or between a remote PC and a gateway router. The security appliance supports the following VPN solutions:

•Site-to-Site VPN: Connects two routers to secure traffic between two sites that are physically separated. See Configuring a Site-to-Site VPN, page 340.

•IPsec Remote Access: Allows the security appliance to act as a head-end device in remote access VPNs. Your security appliance will be set as an IPsec VPN server and push the security policies to remote VPN clients, so that remote VPN clients have up-to-date policies in place before establishing the VPN connections. The IPsec VPN server can also terminate the VPN connections initiated by remote VPN clients. This flexibility allows mobile and remote users to access critical data and applications on corporate Intranet. See Configuring IPsec Remote Access, page 355.

•Teleworker VPN Client: Minimizes the configuration requirements at remote locations by allowing the security appliance to work as a Cisco VPN hardware client to receive the security policies over the VPN tunnel from a remote IPsec VPN server. See Configuring Teleworker VPN Client, page 363.

•SSL VPN: Allows remote users to access the corporate network by using the Cisco AnyConnect Secure Mobility Client software. Remote access is provided through a SSL VPN gateway. See Configuring SSL VPN, page 372.

•L2TP: Allows remote clients to use a public IP network to secure communicate with private corporate network servers. See Configuring L2TP Server, page 385.

NOTE The security appliance can function as an IPsec VPN server or as a Cisco VPN hardware client, but not both simultaneously.

Cisco ISA500 Series Integrated Security Appliances Administration Guide 334