Axis Communications AXIS 233D user manual Link-Local IPv4 Address, NAT traversal port mapping

AXIS 233D - System Options 45

Link-Local IPv4 Address

This is enabled by default and assigns the AXIS 233D an additional IP address for use with UPnP™. The AXIS 233D can have both a Link-Local IP and a static/DHCP-supplied IP address at the same time - these will not affect each other.

HTTP

The default HTTP port number (80) can be changed to any port within the range 1 - 65535. This is useful for e.g. simple port mapping.

HTTPS

If applicable, enter the HTTPS port the AXIS 233D will use. The default setting (443) can be changed to any port within the range 1024-65535. HTTPS is used to provide encrypted web browsing.

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 233D is located on an intranet (LAN) and you wish to make it available from the other (WAN) 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)

routerISP

Notes:	•	For NAT traversal to work, this 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.