Having been messing around personally with getting my own blocks of IP addresses and routing[1] - I've become terrified at the idea of implementing access control based on IP address.

Unless your own organisation in the RR has the IP addresses assigned to you as Provider Independent resources, there just seems to be so many places where 'your' IP address could, albeit most likely accidentally, become not yours any more. And even then, just like domain names, stop renewing the registration and someone else will get them - I was that someone else recently...

[1] AS202858

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yosamino an hour ago | parent [-]

Oh, cool! that's on my bucket list as well. I am still grappling with some concepts, though.

Do you have a writeup of your setup somewhere or can you recommend some learning materials ?

	▲	alibarber 31 minutes ago \| parent [-]
		It's fun and has now become an addictive rabbit hole - trying to get packets from one location to the other in the fastest, most direct way (and at hobbyist budget level). Initial writeup based on IPv6: https://abarber.com/Setting-Up-ASN-IPv6-Routing-BIRD-Teltoni... Have been having fun recently with an IPv4 block and Asynchronous routing, working on writing that up right now :)