User's Manual Part 1

Table Of Contents
Tech-X Flex User Guide - Firmware v06.50 Tech-X Flex
®
(NG2)
2-48
Intro
Overview
Wi-Fi
Ethernet
System
IP/Video
MoCA
RF
Specs
Figure 2-42 Enable WAN Remote Control results screen
Note the following:
If this function fails, the router may not support UPnP management or it may have been
configured in a manner that prevents the unit from performing the necessary tasks. Router
administration is beyond the scope of this document. If you continue to have trouble, consult the
router documentation and/or a network specialist.
In rare cases, this function will pass but report an address of 0.0.0.0. Again, certain router
configurations may cause this behavior. If you already know or can determine a valid WAN side
address, VNC control may still be possible.
Following the router configuration, the unit attempts a test connection with the WAN interface,
using the newly-configured path. If the test is successful, it reports Pass for WAN-side
Loopback, which generally indicates that the path from the interface to the unit is good.
Otherwise, it reports Fail; however, note that hardware limitations and/or other anomalies may
obstruct the test and that the path may still be good. In other words, a result of Fail does not
necessarily indicate a problem and you should always attempt the VNC session anyway.
5. Forward the IP address and port to the remote VNC user, who must then launch a VNC session with
those parameters (see Initiating a VNC connection on the client on page 2-49).
6. When the VNC session is complete, select System > Admin Port > WAN Remote Control >
Disable WAN Remote Control to restore the router to its original configuration.
Additional technical details
This remote control functionality is based on port-forwarding technology that is typically supported by
residential routers. In summary, a router can be configured to accept packets at its public WAN address
using a specific port, then translate to a different port and forward the packets to a specific (non-public)
host on the LAN. In this manner, standard firewalls can remain in place, with a path for very specific traffic
to reach a specific LAN host.
Preliminary issue - Limited distribution only!