{"action":"created","issue":{"url":"https://api.github.com/repos/systemd/systemd/issues/5376","repository_url":"https://api.github.com/repos/systemd/systemd","labels_url":"https://api.github.com/repos/systemd/systemd/issues/5376/labels{/name}","comments_url":"https://api.github.com/repos/systemd/systemd/issues/5376/comments","events_url":"https://api.github.com/repos/systemd/systemd/issues/5376/events","html_url":"https://github.com/systemd/systemd/issues/5376","id":208474468,"number":5376,"title":"networkd: support for /31 IPv4 addresses (rfc3021)","user":{"login":"lemoer","id":601153,"avatar_url":"https://avatars2.githubusercontent.com/u/601153?v=3","gravatar_id":"","url":"https://api.github.com/users/lemoer","html_url":"https://github.com/lemoer","followers_url":"https://api.github.com/users/lemoer/followers","following_url":"https://api.github.com/users/lemoer/following{/other_user}","gists_url":"https://api.github.com/users/lemoer/gists{/gist_id}","starred_url":"https://api.github.com/users/lemoer/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lemoer/subscriptions","organizations_url":"https://api.github.com/users/lemoer/orgs","repos_url":"https://api.github.com/users/lemoer/repos","events_url":"https://api.github.com/users/lemoer/events{/privacy}","received_events_url":"https://api.github.com/users/lemoer/received_events","type":"User","site_admin":false},"labels":[{"id":254327165,"url":"https://api.github.com/repos/systemd/systemd/labels/duplicate","name":"duplicate","color":"fbca04","default":true},{"id":219549709,"url":"https://api.github.com/repos/systemd/systemd/labels/network","name":"network","color":"fad8c7","default":false},{"id":191919608,"url":"https://api.github.com/repos/systemd/systemd/labels/RFE","name":"RFE","color":"009800","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2017-02-17T15:30:17Z","updated_at":"2017-06-06T15:50:20Z","closed_at":"2017-06-06T15:50:20Z","body":"### Submission type\r\n\r\n  - [ ] Bug report\r\n  - [x] Request for enhancement (RFE)\r\n\r\n*NOTE: Do not submit anything other than bug reports or RFEs via the issue tracker!*\r\n\r\n### systemd version the issue has been seen with\r\n\r\n> systemd 230\r\n\r\n*NOTE: Do not submit bug reports about anything but the two most recently released systemd versions upstream!*\r\n\r\n### Used distribution\r\n\r\n> Debian 8.7\r\n\r\n### Description\r\n\r\n[RFC3021](https://tools.ietf.org/rfc/rfc3021.txt) proposes the usage of `/31` IPv4 addresses. Normally this is impossible, because there are no addresses left in an `/31` network, when you assign a broadcast address and a network address. The rfc proposes to leave broadcast address and network address when we have a p2p link.\r\n\r\nI tested whether it's already possible to assign a `/31` with networkd, but it always adds a broadcast address.\r\n\r\nI would propose to simply not assign a broadcast address if ip address to assign is `/31` disregarding the link type since I don't know a case where it's useful to assign a `/31` without host IP addresses."},"comment":{"url":"https://api.github.com/repos/systemd/systemd/issues/comments/306530206","html_url":"https://github.com/systemd/systemd/issues/5376#issuecomment-306530206","issue_url":"https://api.github.com/repos/systemd/systemd/issues/5376","id":306530206,"user":{"login":"keszybz","id":349618,"avatar_url":"https://avatars2.githubusercontent.com/u/349618?v=3","gravatar_id":"","url":"https://api.github.com/users/keszybz","html_url":"https://github.com/keszybz","followers_url":"https://api.github.com/users/keszybz/followers","following_url":"https://api.github.com/users/keszybz/following{/other_user}","gists_url":"https://api.github.com/users/keszybz/gists{/gist_id}","starred_url":"https://api.github.com/users/keszybz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/keszybz/subscriptions","organizations_url":"https://api.github.com/users/keszybz/orgs","repos_url":"https://api.github.com/users/keszybz/repos","events_url":"https://api.github.com/users/keszybz/events{/privacy}","received_events_url":"https://api.github.com/users/keszybz/received_events","type":"User","site_admin":false},"created_at":"2017-06-06T15:50:20Z","updated_at":"2017-06-06T15:50:20Z","body":"Right, let's close this in favour of #4038 which is older."}}
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