I have no clue about serious networking, so I have to ask: why would you have yo... | Hacker News

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		koide on Sept 14, 2012 \| parent \| context \| favorite \| on: The UK has an entire IPv4 /8 that it isn't using I have no clue about serious networking, so I have to ask: why would you have your public, routable addresses unadvertised? What's the benefit of using them instead of a 10.0.0.0/8?

carlisle_ on Sept 14, 2012 [–]

Somebody explained up above, but one example is that it can be used to mitigate collisions. If you have a company merge with another, and both are using 10.0.0.0/8 you could spend a lot of time and money renumbering or you could use unadvertised IPs to connect the networks.

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