Cisco Systems WRV54G manual Vpn

Wireless-G VPN Broadband Router

VPN

Virtual Private Networking (VPN) is a security measure that basically creates a secure connection between two remote locations. This connection is very specific as far as its settings are concerned; this is what creates the security. The VPN screen, shown in Figure 6-17, allows you to configure your VPN settings to make your network more secure.

VPN PassThrough

•IPSec Passthrough. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec Passthrough, click the Enabled button. To disable IPSec Passthrough, click the Disabled button.

•PPTP Pass Through. Point-to-Point Tunneling Protocol Passthrough is the method used to enable VPN sessions to a Windows NT 4.0 or 2000 server. To allow PPTP Passthrough, click the Enabled button. To disable PPTP Passthrough, click the Disabled button.

•L2TP Pass Through. Layering 2 Tunneling Protocol Passthrough is an extension of the Point-to-Point Tunneling Protocol (PPTP) used by to enable the operation of a virtual private network (VPN) over the Internet.To allow L2TP Passthrough, click the Enabled button. To disable L2TP Passthrough, click the Disabled button.

VPN Tunnel

The VPN Router creates a tunnel or channel between two endpoints, so that the data or information between these endpoints is secure.

•To establish this tunnel, select the tunnel you wish to create in the Select Tunnel Entry drop-down box. It is possible to create up to 100 simultaneous tunnels. Then click Enabled to enable the tunnel. Once the tunnel is enabled, enter the name of the tunnel in the Tunnel Name field. This is to allow you to identify multiple tunnels and does not have to match the name used at the other end of the tunnel.

•Local Secure Group and Remote Secure Group. The Local Secure Group is the computer(s) on your LAN that can access the tunnel. The Remote Secure Group is the computer (s) on the remote end of the tunnel that can access the tunnel. Enter the IP Address and Subnet Mask of the local VPN Router in the fields. To allow access to the entire IP subnet, enter 0 for the last set of IP Addresses. (e.g. 192.168.1.0).

•Remote Security Gateway. The Remote Security Gateway is the VPN device, such as a second VPN Router, on the remote end of the VPN tunnel. Enter the IP Address of the VPN device at the other end of the tunnel. The remote VPN device can be another VPN Router, a VPN Server, or a computer with VPN client software that supports IPSec. The IP Address may either be static (permanent) or dynamic (changing), depending on the

Chapter 6: Configuring the Router

Figure 6-17: VPN

31

The Security Tab