Duplicate IP Scanner

The ARP cache refers to a collection of Address Resolution Protocol entries and it is generally created when IP addresses are resolved to a MAC address. The aforementioned IP addresses are mostly dynamic, whereas the cache is created by your system so that the PC can communicate effectively with them. This is one of the reasons why sometimes you come to find out the hard way that your operating system fails to contact a particular device.

Given the mechanism behind, it does not come as a surprise that the ARP cache can sometimes get corrupted. In the worst case scenario, the data is collected and exploited by hackers to conduct potential cyber attacks. Duplicate IP Scanner is a small, portable application that displays the IP, MAC and allocation type as it is currently saved in the ARP cache. In case something seems fishy about these variables, then you can easily delete and refresh them with just one click.

The idea behind the program is to provide a very simple way to deal with a potential vulnerability to your system. In general, to clear the corrupt ARP cache, you need to access the Command Prompt with administrator privileges and use the netsh interface ip delete arpcache command.