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Chapter 6: Configuring the ADSL2+ Gateway
The Security - VPN Tab
ADSL2+ Gateway with VoIP
The Security - VPN Tab
This panel shows VPN (virtual private network) settings. You can disable or enable passthrough for four kinds of
VPNs. You can also set up IPSec (Internet Protocol Security) VPN tunnels for secure remote access.
VPN Passthrough
Virtual Private Networking (VPN) is a security measure that basically creates a secure connection between two
remote locations. Configure these settings so the Gateway will permit VPN tunnels to pass through.
•
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
Enable
button. To disable IPSec
Passthrough, click the
Disable
button.
•
PPPoE Passthrough
. PPPoE Passthrough allows your PC(s) to use the PPPoE client software provided by your
ISP. Some ISPs may request that you use this feature on the Gateway. To allow PPPoE Passthrough, click the
Enable
button. To disable PPPoE Passthrough, click the
Disable
button.
•
PPTP Passthrough
. Point-to-Point Tunneling Protocol Passthrough is the method used to enable VPN
sessions to a Windows NT 4.0 or 2000 server. To allow PPTP Passthrough, click the
Enable
button. To disable
PPTP Passthrough, click the
Disable
button.
•
L2TP Passthrough
. Layering 2 Tunneling Protocol Passthrough is an extension of the Point-to-Point
Tunneling Protocol (PPTP) used to enable the operation of a VPN over the Internet.To allow L2TP Passthrough,
click the
Enable
button. To disable L2TP Passthrough, click the
Disable
button.
IPSec VPN Tunnel
Use this section of the VPN panel to set up, enable, and disable secure IPSec tunnels between the Gateway and
remote IPSec gateways and clients. Note that you must have a working ADSL connection to complete the settings
in this section.
Select Tunnel Entry
: You can enable up to five IPSec tunnels. Each has a number and a name. Use this control to
select the one you want to enable, disable, edit, or delete.
Delete
: Click this button to delete the selected tunnel.
Summary
: Click this button to see a summary of your IPSec settings and the tunnels’ status.
IPSec VPN Tunnel
: Click Enabled to enable the selected tunnel, or Disabled to disable it.
Figure 6-23: The VPN Panel
Figure 6-24: VPN Settings Summary
Summary of Contents for AG310
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