So, if the hosting provider's router supports lowest-address, you'll be able to host two usable addresses on that subnet, at least using Linux, FreeBSD, or OpenBSD (hopefully more OSes in the future).
Maybe we should (be able to) get rid of the broadcast address in this situation too. Cf. RFC 3021 (adding a special case for /31).
(If the hosting provider literally only intends to give you a single address, and insists on giving you a subnet, it should probably give you a /31 instead of a /30, because of the RFC 3021 behavior. Then it's not throwing away addresses for no reason.)
Maybe we should (be able to) get rid of the broadcast address in this situation too. Cf. RFC 3021 (adding a special case for /31).
(If the hosting provider literally only intends to give you a single address, and insists on giving you a subnet, it should probably give you a /31 instead of a /30, because of the RFC 3021 behavior. Then it's not throwing away addresses for no reason.)
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