User manual

Configuration through the web interface
90
IP filtering settings
You can better restrict your device on the network by only allowing certain devices or
networks to connect. This is better known as IP Filtering or Access Control Lists (ACL).
By enabling IP filtering, you are telling the device to only accept connections from
specific and known IP addresses or networks. Devices can be filtered on a single IP
address or can be restricted as a group of devices using a subnet mask that only allows
specific networks to access to the device.
Caution It is important to plan and review your IP filtering settings before
applying them. Incorrect settings can make the Digi device
inaccessible from the network.
On the IP Filtering Settings page, enter the settings as follows:
 Only allow access from the following devices and networks: Enables IP
filtering so that only the specified devices or networks are allowed to connect to
and access the device. Note that if you enable this feature and the system from
which you are connecting to the Digi device is not included in the list of
allowed devices or networks, then you will instantly no longer be able to
communicate or configure the device from this system.
 Automatically allow access from all devices on the local subnet: Specifies
that all systems and devices on the same local subnet or network of the device
should be allowed to connect to the device.
 Allow access from the following devices: A list of IP addresses of systems or
devices that are allowed to connect to this device.
 Allow access from the following networks: A list of networks based on an IP
address and matching subnet mask that are allowed to connect to this device.
This option allows grouping several devices that exist on a particular subnet or
network to connect to the device without having to manually specific each
individual IP address.