DDZ40(10)(20)-YY/HS/HD
www.dallmeier.com
42
Connection method (uDP/TCP)
If the network connection to the device is established via a router/gateway with NAT (Net-
work Address Translation) function, the live video may not be shown in the web browser.
In this case, two solutions are available:
The router/gateway has to be configured for a correct address translation of data packets
sent by the User Datagram Protocol (UDP).
UDP is by default used by the streaming function of the device.
An easier solution is to select
tcP
from the drop-down list
connection method
.
In this case, the device switches the protocol of the streaming function to the
Transmission Control Protocol (TCP).
To receive the data packets, the port 30000 for the DaVid Protocol
and port 80 for the
Hypertext Transfer Protocol (HTTP) must be open.
Note that during the data transmission via TCP
• normally no packet loss (lack of images) occurs.
• short-term peaks in network traffic may occur.
•
low delays may occur.
The “Connection method” described above does not affect the streaming function (see
8.3
Login
The graphical user interface of the configuration mode is displayed after the successful
identification as authorized user.
The factory default admin password is “
3
”.
Notice
Risk of misuse by unauthorized users!
Change the factory default admin password as soon as possible.
Click
coNFiG
in the user interface of the live mode.
The login dialogue is displayed.
Fig. 8-4
8)
Dallmeier Video Protocol