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Verifying if two hosts are on the same IPv4 network

The Wiert Corner РRecently, I wrote a bunch of code both in C# and Delphi to verify if two hosts are on the same IPv4 network. Even though the public IPv4 address space is exhausted (IANA recently allocated the final two IPv4 blocks of their primary pool to APNIC, then allocated the five remaning /8 IPv4 blocks to the RIRs, thereby depleting the IPv4 pool), they are still used a lot, especially in private networks. Over the next couple of weeks, you will see a couple of blog posts explaining: how to get the IPv4 addresses and network masks of network interfaces in your computer how to convert those to and from ...
Favorite? Off-Topic? jpluimers @ 2011-02-17 05:00


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