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Joined 11 months ago
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Cake day: August 15th, 2023

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  • That’s doable too. A lot of people don’t realize you can route all of those together. It’s even more fun as technically you can route private addresses across public links if you own both ends of the link. Used to see that done at a large ISP to route their internal network and it’d pop new networking admins minds.

    ETA: I would use 192.x IPs for unrouted subnets like heartbeats or iSCSI.


  • Yeah. Here’s a breakdown of the allocations and their sizes:

    • 192.168.0.0/16 - 65,536 addresses
    • 172.16.0.0/12 - 1,048,576 addresses
    • 10.0.0.0/8 - 16,777,216 addresses

    Most home applications only need a single /24 (256 addresses) so they are perfectly fine with 192.168.0.0/24, but as you get larger businesses, you don’t use every single address but instead break it out by function so it’s easier to know what is what and to provide growth in each area.