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Setting Up: Advanced
Linksys E-Series
How to connect to your corporate office
using a VPN
What is a VPN, and do I need to change my router settings? A VPN (Virtual
Private Network) is a network that uses a public network, such as the Internet,
to provide secure communications between a remote computer and another
network. Corporations often provide VPN access to their networks to enable
employees to work from remote offices or while traveling. Most corporate VPNs
use the Internet to provide connectivity between remote employees and the
corporate network.
For a typical VPN, the corporation installs a VPN gateway on their corporate
network. Employees authorized to work remotely connect to the VPN gateway
through the Internet using VPN software and security methods provided by
their employers. Robust security and authentication schemes ensure a secure
connection and access by only authorized users.
The default VPN settings in your router have been configured to pass through
(allow) the most common types of VPN protocols, so usually no changes are
needed.
To change your VPN passthrough settings:
Security > VPN Passthrough
1.
Log into the browser-based utility (see “How to open the browser-based
utility” on page 21).
2.
Click the Security tab, then click the VPN Passthrough page.
3.
Select each setting that you want to change.
TIP
For brief descriptions of the VPN passthrough field settings, click
Help in the right side of the screen. More complete descriptions are
provided below.
• IPSec Passthrough – IPSec (Internet Protocol Security) is a suite of
protocols used to implement secure exchange of packets at the IP
layer. The VPN clients on the local network can establish an IPSec VPN
tunnel through the router. This option is enabled by default.
• PPTP Passthrough – PPTP (Point-to-Point Tunneling Protocol) allows
the PPP (Point-to-Point Protocol) to be tunneled through an IP network.
The VPN clients on the local network can establish a PPTP VPN tunnel
through the router. This option is enabled by default.
• L2TP Passthrough – L2TP (Layer 2 Tunneling Protocol) enables point-
to-point sessions using the Internet on the Layer 2 level. The VPN
clients on the local network can establish an L2TP VPN tunnel through
the router. This option is enabled by default.
4.
Click Save Settings to save your changes.
How to optimize your router for gaming
and voice
How does my router prioritize traffic to the Internet? Your router has QoS
(Quality of Service) settings that can prioritize traffic from your network out to
the Internet. Performance for demanding, real-time applications, such as online
gaming, VoIP calls, video streaming, and videoconferencing, can be improved
by configuring Internet access priorities.
QoS is applied only to traffic that is uploaded to the Internet. The router cannot
control the quality of the traffic after it reaches the Internet.
TIP
For more information on optimizing your router for online gaming,
see “Port Forwarding and Port Triggering” on page 50.