Skipping IP's when scanning a range

[dnyt84]

Describe the bug
I am Scanning an IP range, for example 192.168.56.250 - 192.168.57.20
In that range there are 12 valid IP addresses.
But the scanner only scan's 10 IP addresses skipping 192.168.56.255 and 192.168.57.0.
This is not correct behavior as the subnet is a /21 and 255 and 0 are valid IP addresses.

Similar to public space where .0 and .1 or .254 and .255 can be valid when either it is part of a larger subnet or a /31 subnet.
we use /31 on Point to Point links.

Same behavior when scanning for a /23, it skips the .0 and .255 address out of both subnets even though the IP Range specifies x.x.14.0 to x.x.15.255.

To Reproduce
Steps to reproduce the behavior:
Scan 192.168.56.250 - 192.168.57.20 and only 10 IP's are scanned.
Scan 192.168.56.0/23
Expected behavior
Should be 12 IP addresses
Screenshots
If applicable, add screenshots to help explain your problem.

Versions (please complete the following information):

• Windows 10

• Java version,
  java version "1.8.0_301"
  Java(TM) SE Runtime Environment (build 1.8.0_301-b09)
  Java HotSpot(TM) 64-Bit Server VM (build 25.301-b09, mixed mode)

• Version of Angry IP Scanner: 3.7.6

[dnyt84]

bump

[angryziber]

You are right, this needs to be addressed.
Probably skipping must be done based on the chosen netmask for scanning. Unfortunately, it cannot be done with non-rangenbased scans.

In the meantime, you can disable this skipping in Preferences.