NAT Parameters
Web/EMS: NAT Traversal
[DisableNAT]
Enables the NAT mechanism. For more information, see 'First
Incoming Packet Mechanism' on page 129.
 [0] Enable
 [1] Disable (default)
Web: NAT IP Address
EMS: Static NAT IP Address
[StaticNatIP]
Defines the global (public) IP address of the device to enable static
NAT between the device and the Internet.
Note: For this parameter to take effect, a device reset is required.
EMS: Binding Life Time
[NATBindingDefaultTimeout]
Defines the default NAT binding lifetime in seconds. STUN refreshes
the binding information after this time expires.
The valid range is 0 to 2,592,000. The default value is 30.
Note: For this parameter to take effect, a device reset is required.
[EnableIPAddrTranslation]
Enables IP address translation for RTP, RTCP, and T.38 packets.
 [0] = Disable IP address translation.
 [1] = (Default) Enable IP address translation.
 [2] = Enable IP address translation for RTP Multiplexing
(ThroughPacketâ„¢).
 [3] = Enable IP address translation for all protocols (RTP, RTCP,
T.38 and RTP Multiplexing).
When enabled, the device compares the source IP address of the
first incoming packet to the remote IP address stated in the opening
of the channel. If the two IP addresses don't match, the NAT
mechanism is activated. Consequently, the remote IP address of the
outgoing stream is replaced by the source IP address of the first
incoming packet.
Notes:
 The NAT mechanism must be enabled for this parameter to take
effect (i.e., the parameter DisableNAT is set to 0).
 For information on RTP Multiplexing, see RTP Multiplexing
(ThroughPacket).
[EnableUDPPortTranslation]
Enables UDP port translation.
 [0] = (Default) Disables UDP port translation.
 [1] = Enables UDP port translation. The device compares the
source UDP port of the first incoming packet to the remote UDP
port stated in the opening of the channel. If the two UDP ports
don't match, the NAT mechanism is activated. Consequently, the
remote UDP port of the outgoing stream is replaced by the
source UDP port of the first incoming packet.
Notes:
 For this parameter to take effect, a device reset is required.
 The NAT mechanism and the IP address translation must be
enabled for this parameter to take effect (i.e., set the parameter
DisableNAT to 0 and the parameter EnableIpAddrTranslation to
1).
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