The Security Tab; Figure 6-15: Security Tab -Firewall - Cisco Linksys BEFVP41 v2 User Manual

Cable/dsl vpn router with 4-port 10/100 switch

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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch

The Security tab

The Security tab is the second tab listed atop the Web-based Utility. This tab is divided into two screens: Firewall

and VPN. Each of these screens is described in detail below.

Firewall

When you click Security, you will see the Firewall screen. This allows you to Enable or Disable the firewall,

which shields your network from outside users, and manage different filters, which provide additional protection.

Filters block specific internal users from accessing the Internet and block anonymous Internet requests and/or

multicasting.

Additional Filters

This area allows you to block, or filter, certain Internet applications from your network. Click the box next to those

applications you wish to filter.

Block WAN Requests

Block Anonymous Internet Requests. This keeps your network from being "pinged" or detected and

reinforces your network security by hiding your network ports, so it is more difficult for intruders to work their

way into your network. Click the box beside this option to enable it.

When finished making your changes on this screen, click the Save Settings button to save these changes, or

click the Cancel Changes button to undo your changes.

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 tab 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.

Chapter 6: Using The Router's Web-based Utility

The Security tab

multicasting: sending data to a group of destinations at once

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