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VCS Deployment Method
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to work as a STUN client, to send exploratory STUN messages to the STUN server. The STUN
server uses those messages to determine the public IP address and port used, and then informs
the client. For more information, refer to
Capturing packets after you enable the STUN feature, you can find that the VC800/VC500 video
conferencing system sends Binding Request to the STUN server, and then mapped IP address
and port is placed in the Binding Response: Binding Success Response MAPPED-ADDRESS:
59.61.92.59:19232.
The system will send SIP message using the mapped IP address and port.
Note
STUN feature parameters on the system are described below:
Parameter
Description
Configuration Method
Active
Enables or disables the STUN
(Simple Traversal of UDP over NATs)
feature on the system.
Default
: Disabled
Remote Control
Web User Interface
STUN Server
Configures the IP address or the
domain name of the STUN (Simple
Traversal of UDP over NATs) server.
Default
: Blank
Remote Control
Web User Interface
STUN Port
Configures the port of the STUN
(Simple Traversal of UDP over NATs)
server.
Default:
3478
Remote Control
Web User Interface
STUN does not enable incoming TCP connections through NAT or incoming UDP packets
through symmetric NATs.
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