67
Subject to errors and modifications
W&T Appendix
The authorization concept of the USB-Server
The control and configuration access to the USB-Server is
password protected. The factory default setting is for no
password, so that simply logging in provides full access to the
corresponding settings and functions. To prevent unauthorized
access, we therefore strongly recommend using a password.
Additional related measures, such as the composition of the
password and regularly changing it, should be organizationally
ensured as needed by the customer.
Passwords are sent to the USB-Server unencrypted. It must
therefore be ensured that password-protected access takes
place only using an Intranet which the customer presumes to
be secure. For access over the public Internet additional
measures must be taken, for example constructing a VPN
tunnel (Virtual Private Network). This is however a general
problem of network security for which each customer must find
an individual solution.
Ports with special functions
In addition to access using Web Based Management, other
functions can be enabled using various TCP and UDP ports.
These are shown in the previous table. Details can be found in
the corresponding sections of this manual.
• Inventorizing tool
Like all intelligent components from W&T the USB-Server can
be accessed using the WuTility tool. Here information is
read from UDP port 8513. This port cannot be turned off.
No write access is possible through this path.
• Firmware update
(see section Firmware update)
Initializing a firmware update is handled by the system
password protected TCP port 2682. For a firmware update
only the operating system of the USB-Server is updated. The
configuration data (IP address, gateway etc.) remain intact.
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