User Manual Part 1

Quanta Computer Inc. IEEE802.16e WiMAX IAD (WV202)
User Manual
211, Wen Hwa 2nd Rd., Kuei Shan Hsiang, CONFIDENTIAL
Tao Yuan Shien, Taiwan, R.O.C. Classification: proprietary information
http://www.quantatw.com
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4.4 NAT Traversal
VoIP NAT Traversal is a technology allowing IP phones or gateways capable of making and receiving
calls behind NAT router. In brief, if your IP phone or gateway is using private IP and you want to talk
with users over Internet WV202 supports two ways to handle this issue:
(1) Implement STUN (Simple Traversal of UDP through NATs) to learn the IP address of NAT WAN
port and then automatically fake WAN address on SIP and RTP on IP phone or gateway
(2) UPnP between NAT router and IP phone
Field Description Default value
STUN Enable/Disable STUN function. Default setting is disabled. Disable
UPNP Enable/Disable STUN function. Default setting is disabled. Disable
Field Description Default value
(Line1 / Line2)
SIP NAT Keep
Alive
Enable/Disable NAT Keep Alive function. If enable NAT
traversal function, the SIP client will sends the NAT keep
alive packets. Default setting is disabled.
Disable / Disable
SIP NAT Keep
Alive Interval
The interval time to send the NAT keep alive packets.
Assigns a value from 1 to 3600, default setting is 15
seconds.
15 / 15
Field Description Default value
STUN Enable/Disable STUN function. Default setting is disabled. Disable
STUN Server
Address
The IP address of STUN server. The STUN server allows
clients to find out their public address, the type of NAT they
are behind and the internet side port associated by the NAT
with a particular local port
0.0.0.0