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Home > VoIP > STUN Configuration
STUN is useful if you need to use the DVG-1402S behind a modem or router that
provides the connection to your ISP and then to the Internet and does not support
symetric NAT. You will need access to a STUN server on the Internet and its IP
address to use STUN on the DVG-1402S.
STUN State Use this drop-down menu to Enable or Disable STUN on the
router.
STUN Server IP Address Enter the IP address of a STUN server in this field.
STUN Server Port Enter the port number the STUN server will use in this field.
If you do not have any information as to the proper port
number, leave the default setting here.
STUN ReqInterval This determines the amount of time, in seconds, between
STUN requests. If you do not have any information as to the
proper interval, leave the default setting here.
STUN NAT Type Displays the result of the STUN NAT examination.
Simple Traversal of UDP
over NAT (STUN) − is a
protocol which enables a
VoIP device, such as this
router or an IP phone, to
detect the presence and
type of NAT behind which
the phone is placed. This
router supports STUN
and can intelligently
modify the private IP
address and port in its
SIP/SDP message by
using the NAT mapped
public IP address and port
through a series of STUN
queries against a STUN
server located on the
public Internet. This will
allow SIP signaling and
RTP media to
successfully traverse a
NAT without requiring any
configuration changes on
the NAT.