ICP DAS USA PDS-220F Series User Manual page 37

Programmable Serial-to-Fiber Device Server
The following is an overview of the parameters contained in the IP Filter Setup Page section:

Item
Set IP1 only
Set IP1 + IP2
Set IP1 + Mask
Set a single IP address, the IP address entered in the "IP1" and "IP2/MASK" text
fields will be the same, as the image below shows. Only clients who's IP address is
included in the filter table are able to connect to the PDS-220Fx.
Set a range of IP address as a starting and ending point. The initial IP address must
be entered in the "IP1" text field and final IP address must be entered in the
"IP2/MASK" text field, as the image below shows.
This allows clients who's IP address is included in the range of 10.0.9.5 to 10.0.9.55
are able to connect to the PDS-220Fx.
Set the IP Filter (Available IP) range, the IP address must be entered in the "IP1" text
field and Mask address must be entered in the "IP2/MASK" text field, as the image
below shows.
This allows clients who's IP address is included in the range of 10.0.9.0 to
10.0.9.255 are able to connect to the PDS-220Fx.
Note that how to get the IP address range 10.0.9.0 to 10.0.9.255? It's calculated
as follows:
Formula:
(10.0.9.5 & 255.255.255.0)
(10.0.9.0)
10.0.9.0
PDS-220Fx Series User Manual
Description
(IP1 & MASK) to (IP1 & Mask) + (~MASK)
to (10.0.9.5 & 255.255.255.0) + (0.0.0.255)
to (10.0.9.0) + (0.0.0.255)
to 10.0.9.255
Version 1.3, Oct. 2018 - 37 -