Nikon D4 - Manual (Page 17)

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Connection Types
The WT-5 offers a choice of the following connection types:
For more information, see the network guide supplied with the
camera.
FTP upload Upload existing photos and movies to a
computer or ftp server, or upload new photos
as they are taken.
Image transfer
Camera control
Control the camera using optional Camera
Control Pro 2 software and save new photos
and movies directly to the computer.
HTTP server
View and take pictures remotely using a
browser-equipped computer or iPhone.
Synchronized release
Synchronize the shutter releases for multiple
remote cameras with a master camera.
A
FTP Servers
Servers can be configured using standard ftp services, such as IIS
(Internet Information Services), available with supported operating
systems. See the network guide supplied with the camera for more
information. Image transfer and camera control do not support
connection to computers on other networks via a router, Internet ftp
connections and ftp servers running third-party software.
A
HTTP Sever Mode
Internet connections are not supported in http server mode.
A
Firewall Settings
Ports 21 and 32768 through 61000 are used for ftp, ports 22 and 32768
through 61000 for sftp, while image transfer and camera control modes
use TCP port 15740 and UDP port 5353. File transfer may be blocked if
the server firewall is not configured to allow access to these ports.