Cisco WRT54GS User Manual - Page 57

Wireless-G Broadband Router with SpeedBooster The Security Tab - VPN Passthrough Use the settings on this tab to allow VPN tunnels using IPSec, PPTP, or L2TP protocols to pass through the Router's firewall. IPSec Pass-through. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec tunnels to pass through the Router, click Enable. IPSec PassThrough is enabled by default. PPTP Pass-through. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow PPTP tunnels to pass through the Router, click Enable. PPTP PassThrough is enabled by default. Figure 6-26: Security Tab - VPN Passthrough L2TP Pass-through. Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, click Enable. L2TP Pass-Through is enabled by default. vpn: a Vsecurity measure to protect data as it leaves one network and goes to another over the Internet Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. ipsec: a VPN protocol used to implement secure exchange of packets at the IP layer pptp: a VPN protocol that allows the Point to Point Protocol (PPP) to be tunneled through an IP network. This protocol is also used as a type of broadband connection in Europe Chapter 6: Configuring the Wireless-G Broadband Router 49 The Security Tab - VPN Passthrough