Assistance in the protection from unauthorized access
7.6
Activating the IP access restriction
93
UM Config GRS
Release
8.0
09/2019
7.6
Activating the IP access restriction
In the default setting, you access the device management from any IP address and with the
supported protocols.
The IP access restriction lets you restrict access to the device management to selected IP address
ranges and selected IP-based protocols.
Example:
The device is to be accessible only from the company network using the Graphical User Interface.
The administrator has additional remote access using SSH. The company network has the address
range
192.168.1.0/24
and remote access from a mobile network with the IP address range
109.237.176.0/24
. The SSH application program knows the fingerprint of the RSA key.
Table 13: Parameters for the IP access restriction
Parameter
Company network
Mobile phone network
Network address
192.168.1.0
109.237.176.0
Netmask
24
24
Desired protocols
https, snmp
ssh
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