Axis Communications Axis 211A - Manual (Page 48)

48 AXIS 210A/211A - System Options
Use NAT traversal when your AXIS 210A/211A 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 is
forwarded to the camera.
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.
Enable/Disable - When enabled, the AXIS 210A/211A attempts 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).
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 210A/211A automatically searches for NAT
routers on your network. If more than one router is found, the default router is 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 is
automatically selected when NAT traversal is enabled.
Notes: • An alternative HTTP port can be used/be active even if NAT traversal is disabled. This is
useful if e.g. your NAT router does not support UPnP and you need to manually configure
port forwarding in the NAT router.
• If you attempt to manually enter a port that is already in use, another available port us
automatically selected.
• When the port is selected automatically it is displayed in this field. This can be changed
by entering a new port number and clicking Save.
FTP
The FTP server running in the AXIS 210A/211A enables the upload of e.g. new firmware,
user applications, etc. Check the box to enable the service.
RTSP
LAN (intranet) WAN (internet)
Broadband
(NAT)
router
ISP