Linksys BEFSX41 Router’s Back Panel, Modem connection will not work from any other port, Ports

Instant Broadband® Series

Important: You must have at least one Firewall Router on one end of the VPN tunnel. At the other end of the VPN tunnel, you must have a second Firewall Router or a computer with VPN client software that supports IPSec.

Computer (using VPN client software that supports IPSec) to Firewall Router

The following is an example of a computer-to-Firewall Router VPN. (See Figure 2-2.) In her hotel room, a traveling businesswoman dials up her ISP. Her notebook computer has VPN client software that is configured with her office's VPN settings. She accesses the VPN client software that supports IPSec and connects to the Firewall Router at the central office. As VPNs utilize the Internet, distance is not a factor. Using the VPN, the businesswoman now has a secure connection to the central office's network, as if she were physically connected.

Figure 2-2

For additional information and instructions about creating your own VPN, please visit Linksys’s website at www.linksys.com or refer to “Appendix C: Configuring IPSec between a Microsoft Windows 2000 or XP PC and the Firewall Router.”

EtherFast® Cable/DSL Firewall Router with 4-Port Switch/VPN Endpoint

Chapter 3: Getting to Know the EtherFast Cable/DSL Firewall Router

The Router’s Back Panel

The Router’s ports, shown in Figure 3-1, are where network cables are con- nected

	Figure 3-1
WAN	The WAN (Wide Area Network) port is where you connect
	your cable or DSL modem through an Ethernet cable. Your
	modem connection will not work from any other port.
Ports 1-3	These three LAN (Local Area Network) ports are where you
	will connect networked devices, such as PCs, print servers,
	switches, and anything else you want to put on your network.
	(These ports auto-detect crossover and straight-through
	cables.)
Port 4/DMZ	Port 4/DMZ operates like a regular LAN port to connect with
	network devices, unless DMZ is enabled through the
	Cable/DSL Firewall Router’s web-based utility. Once DMZ is
	enabled, this port will be accessible with NO PROTECTION
	from the firewall. Be sure to disable the DMZ function through
	the web-based utility if you want this port shielded by the
	Cable/DSL Firewall Router’s firewall. (This port auto-detects
	crossover and straight-through cables.)
Power	The Power port is where you will connect the power adapter.

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