TANDBERG 1700 MXP 115, Settings IV Advanced NAT Settings, About Network Address Translation nat

Control Panel > Network Settings > LAN Settings

H.323 Settings (IV) – Advanced NAT Settings

TANDBERG 1700 MXP USER GUIDE

About Network Address Translation (nat)

NAT, Network Address Translation, is used when a PC and a videoconferencing system are connected to a router with NAT support. NAT support in the videoconferencing system enables proper exchange of audio/video data when connected to an external videoconferencing system (when the IP traffic goes through a NAT router). When NAT is On, the NAT Server Address will be shown in the startup- menu: My IP Address: 10.0.2.1.

	NAT	NAT Address
On. The system will signal the configured		This must be the external/glo-
“NAT Address” in place of its own IP-address		bal IP-address to the router with
within Q.931 and H.245.		NAT support. Packets sent to
Auto. The system will try to determine if the		the router will then be routed to
		the system. In the router, the
“NAT Address” or the real IP-address should
		following ports must be routed
be used within signalling. This is done to
		to the system’s IP-address:
make it possible to place calls to endpoints
		• Port 1720
on the LAN as well as endpoints on the
WAN.		• Port 5555-5560
		• Port 2326-2365
		Please contact your TANDBERG
		representative for further infor-
		mation.
		RSVP
		Auto. Resource Reservation
		Protocol enables the systems to
		request the optimum amount of
		bandwidth for the duration of an
		IP videoconference.
		Off. Resource Reservation
		Protocol is switched off.
		H.323 Ports
The upper part of the menu is explained on		Static. When selecting static
the preceding pages.		H.323 ports for TCP connec-
		tions the ports 5555 to 5574
CANCEL		will be used for Q.931 and
		H.245 respectively.
Select this icon and press OK
		Dynamic. The system will al-
to leave the menu undoing any
changes.		locate which ports to use when
RESTORE DEFAULTS		opening a TCP connection.
		The reason for doing this is
Select this icon and press OK
		to avoid using the same ports
to restore the default settings.
		for subsequent calls as some
Save		firewall consider this as a sign
Select this icon and press		of attack.
OK to leave the menu putting
changes into effect.

Note! The Advanced H.323 Settings only have effect when supported by your IP infrastructure.

D 13954.01	115
MAY 2006