SMC Networks Barricade SMC7908VoWBRA2 User Manual page 84

C
ONFIGURING THE
Special Application
Some applications require multiple connections, such as Internet gaming,
video-conferencing, and Internet telephony. These applications may not
work when Network Address Translation (NAT) is enabled. If you need to
run applications that require multiple connections, use these screens to
specify the additional public ports to be opened for each application.
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V ADSL R
OICE OUTER