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   Chris Siebenmann (cks@mastodon.social)'s status on Saturday, 04-Nov-2023 01:46:22 JST Chris Siebenmann

   Blog post: Network firewalls and Ethernet addresses, on some reasons why firewalls almost entirely work with IPs and don't have much support for MACs https://utcc.utoronto.ca/~cks/space/blog/tech/FirewallsAndMACs

   (Firewalls not having good support for MAC-based actions is sometimes inconvenient, for example because Android devices don't support DHCPv6 for religious reasons.)