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Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router
The Security Tab - Firewall
Dual-Band Wireless A+G Broadband Router
The Security Tab - Firewall
The Firewall screen offers the Block Anonymous Internet Requests feature. The use of this feature enhances the
security of your network.
Firewall
Block Anonymous Requests. When enabled, this feature keeps your network from being “pinged,” or detected,
by other Internet users. It also reinforces your network security by hiding your network ports. Both functions of
this feature make it more difficult for outside users to work their way into your network. This feature is enabled
by default. Select Disabled to allow anonymous Internet requests.
Change this setting as described here and click the Save Settings button to apply your change or Cancel
Changes to cancel your change. Help information is shown on the right-hand side of the screen.
The Security Tab - VPN Passthrough
Use the settings on this tab to allow VPN tunnels using IPSec, L2TP, or PPTP protocols to pass through the
Router’s firewall.
VPN Passthrough
IPSec Passthrough. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange
of packets at the IP layer. IPSec Pass-Through is enabled by default. To disable IPSec Passthrough, select
Disabled.
L2TP Passthrough. Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the
Internet on the Layer 2 level. L2TP Pass-Through is enabled by default. To disable L2TP Passthrough, select
Disabled.
PPTP Passthrough. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be
tunneled through an IP network. PPTP Pass-Through is enabled by default. To disable PPTP Passthrough, select
Disabled.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen. For additional
information, click More.
Figure 5-16: Security Tab - Firewall
Figure 5-17: Security Tab - VPN Passthrough
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.
vpn: a security measure to protect data as it leaves
one network and goes to another over the Internet.