Access VPN Solutions Using Tunneling Technology

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Com username from the local database. This ensures that the home gateway uses CiscoSecure NT instead of the local username database to authenticate the username. Step 3—Configuring the CiscoSecure ACS UNIX Server In this step, the ISP configures CiscoSecure ACS UNIX to: • • • Authenticate VPN Discover the IP tunnel endpoint information Track the accounting information relating to VPN usage Configuring the Access VPN to Work with Remote AAA 63 The following procedure shows how to configure CiscoSecure UNIX by using RADIUS as the security protocol.

Once the tunnel is established, the NAS forwards the call to the home gateway. • The home gateway authenticates the username, jeremy, and assigns the client an IP address. ) • The client and the home gateway can now exchange PPP packets. The NAS now acts as a transparent PPP frame forwarder. com and determines the tunnel endpoint information. Configuring the Access VPN To configure the NAS and home gateway to work as an access VPN, follow these steps: • • Step 1—Configuring the NAS Step 2—Configuring the Home Gateway Step 1—Configuring the NAS In this step, the ISP configures the NAS for VPN using local AAA.

Once the tunnel is established, the NAS forwards the call to the home gateway. • The home gateway authenticates the username, jeremy, and assigns the client an IP address. ) • The client and the home gateway can now exchange PPP packets. The NAS now acts as a transparent PPP frame forwarder. com and determines the tunnel endpoint information. Configuring the Access VPN To configure the NAS and home gateway to work as an access VPN, follow these steps: • • Step 1—Configuring the NAS Step 2—Configuring the Home Gateway Step 1—Configuring the NAS In this step, the ISP configures the NAS for VPN using local AAA.

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