User's Manual
20
Select Disable or Enable from the pull-down menu. 
UPNP 
Universal Plug and Play (UPnP) is a set of computer protocols promulgated 
by the UPnP Forum. The goals of UPnP are to allow devices to connect 
seamlessly and to simplify the implementation of networks in the home 
(data sharing, communications, and entertainment) and in corporate 
environments for simplified installation of computer components. UPnP 
achieves this by defining and publishing UPnP device control protocols 
built upon open, Internet-based communication standards. The term UPnP 
is derived from plug-and-play, a technology for dynamically attaching 
devices directly to a computer. 
Select Disable or Enable from the pull-down menu. 
PPPoE Relay  This section is only available in Gateway Mode. 
Select Disable or Enable from the pull-down menu. 
DNS Proxy 
Select Disable or Enable from the pull-down menu. 
Apply 
After completing the settings on this page, click Apply button to save the 
settings. 
Cancel 
Click Cancel to restore to default values. 
VPN Passthrough (GW) 
VPN passthrough configurations including: L2TP, IPSec, and PPTP passthrough. 
L2TP Passthrough 
L2TP, Layer Two Tunneling Protocol (L2TP). Use the L2TP with 
VPN that user can access the personal network via Internet. 
Select Enabled or Disabled from the pull-down menu. 
IPSec Passthrough 
IPSec, Internet Protocol Security. Select Enabled or Disabled from 
the pull-down menu. 
PPTP Passthrough 
PPTP, Point-to-Point Tunneling Protocol. Select Enabled or Disabled 
from the pull-down menu. 










