On 3/26/2021 2:01 PM, William Herrin wrote:
If you feel like getting fancy...
Use /32 routes to reclaim the unused base and broadcast address in any /30s
Pick the next largest size block that has your /24 neither at the start or end and assign that to your lan.
Use proxy arp and more specific routes to grab traffic that doesn't fall in the /24 or is part of the loopback and point to point numbering and move it off the lan and towards its destination (including upstream).
..
You have 10.0.1.0/24
Put 10.0.0.0/22 on your LAN Add proxy arp and route 10.0.0.0/24 upstream Add proxy arp and route 10.0.2.0/23 upstream Add proxy arp and route 10.0.1.254/32 to your first router loopback etc.
If you're really clever you can convince the stations that 10.0.0.1 is the default gateway but convince the router that 10.0.0.1 is upstream so that the router doesn't even need a dedicated IP address facing the LAN.
Regards, Bill Herrin
And here I almost went as far as to suggest unnumbered IPs.... you're plan is... well... diabolical in comparison.