User`s manual

AXIS 206 - System Options

NAT traversal (port mapping)

A broadband router allows devices on a private network (LAN) to share a single connection

to the Internet. This is done by forwarding network traffic from the private network to the

“outside” i.e. the Internet. Security on the private network (LAN) is increased since most

broadband routers are pre-configured to stop any attempts to access the private network

(LAN) from the public network/Internet.

Use NAT traversal when your AXIS 206 is located on an intranet (LAN) and you wish to

make it available to a WAN on the other side of a NAT router. With NAT traversal properly

configured, all HTTP traffic to an external HTTP port in the NAT router will be forwarded

to the camera.

LAN (Intranet)

WAN (Internet)

Broadband

(NAT)

router

ISP

Notes: • For NAT traversal to work, it must also be supported by the broadband router.

• The broadband router has many different names: “NAT router”, “Network router“, Internet Gateway”,

“Broadband sharing device” or “Home firewall” but the essential purpose of the device is the same.

Enable/Disable - When enabled, the AXIS 206 will attempt to configure port mapping in a

NAT router on your network, using UPnP™. Note that UPnP™ must be enabled in the

camera (see System Options > Network > UPnP).

AXIS Internet Dynamic DNS Service - Use this free service to assign a host name

(user-friendly name) for easy access to your camera. If the IP address of the camera or NAT

router changes, the AXIS Internet Dynamic DNS Service will automatically be updated

with the new IP address.

Use manually selected NAT router - Select this option to manually select a NAT router

and enter the IP address for the router in the field provided.

If a router is not manually specified, the AXIS 206 will automatically search for NAT

routers on your network. If more than one router is found, the default router will be

selected.

Alternative HTTP port - Select this option to manually define an external HTTP port. Enter

the port number in the field provided. If no port is entered here a port number will

automatically be selected when NAT traversal is enabled.