payload: {"action":"created","issue":{"url":"https://api.github.com/repos/systemd/systemd/issues/12145","repository_url":"https://api.github.com/repos/systemd/systemd","labels_url":"https://api.github.com/repos/systemd/systemd/issues/12145/labels{/name}","comments_url":"https://api.github.com/repos/systemd/systemd/issues/12145/comments","events_url":"https://api.github.com/repos/systemd/systemd/issues/12145/events","html_url":"https://github.com/systemd/systemd/issues/12145","id":427002567,"node_id":"MDU6SXNzdWU0MjcwMDI1Njc=","number":12145,"title":"systemd-networkd IPV4LL addr assingment and drop in loop","user":{"login":"diego-sueiro","id":46822139,"node_id":"MDQ6VXNlcjQ2ODIyMTM5","avatar_url":"https://avatars0.githubusercontent.com/u/46822139?v=4","gravatar_id":"","url":"https://api.github.com/users/diego-sueiro","html_url":"https://github.com/diego-sueiro","followers_url":"https://api.github.com/users/diego-sueiro/followers","following_url":"https://api.github.com/users/diego-sueiro/following{/other_user}","gists_url":"https://api.github.com/users/diego-sueiro/gists{/gist_id}","starred_url":"https://api.github.com/users/diego-sueiro/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/diego-sueiro/subscriptions","organizations_url":"https://api.github.com/users/diego-sueiro/orgs","repos_url":"https://api.github.com/users/diego-sueiro/repos","events_url":"https://api.github.com/users/diego-sueiro/events{/privacy}","received_events_url":"https://api.github.com/users/diego-sueiro/received_events","type":"User","site_admin":false},"labels":[{"id":239790930,"node_id":"MDU6TGFiZWwyMzk3OTA5MzA=","url":"https://api.github.com/repos/systemd/systemd/labels/needs-reporter-feedback%20%E2%9D%93","name":"needs-reporter-feedback ❓","color":"eb6420","default":false},{"id":219549709,"node_id":"MDU6TGFiZWwyMTk1NDk3MDk=","url":"https://api.github.com/repos/systemd/systemd/labels/network","name":"network","color":"fad8c7","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":6,"created_at":"2019-03-29T14:04:23Z","updated_at":"2019-04-02T08:31:04Z","closed_at":"2019-04-02T08:27:31Z","author_association":"NONE","body":"**systemd version the issue has been seen with**\r\n> systemd 239\r\n\r\n<!-- **NOTE:** Do not submit bug reports about anything but the two most recently released systemd versions upstream! -->\r\n<!-- For older version please use distribution trackers (see https://github.com/systemd/systemd/blob/master/docs/CONTRIBUTING.md#filing-issues). -->\r\n\r\n**Used distribution**\r\n > Custom, built with Yocto Project master branch\r\n\r\n**Expected behaviour you didn't see**\r\n > DHCP IPv4 and IPV4LL addresses assigned and not removed.\r\n\r\n**Unexpected behaviour you saw**\r\n > The systemd-networkd removes and adds IPV4LL addr in a loop.\r\n\r\n**Steps to reproduce the problem**\r\n\r\n**/lib/systemd/network/10-net.network:**\r\n```\r\n[Network]\r\nLinkLocalAddressing=yes\r\nDHCP=ipv4\r\n```\r\n\r\nPlugged a USB cellular module (Quectel EC25) which is presented in the system as usb1 and uses the cdc_ether driver.\r\n\r\nThe systemd-networkd removes and adds the IPV4LL in a loop. I couldn't reproduce this behavior in the native ethernet interface.\r\n\r\nsystemd-networkd log with `Environment=SYSTEMD_LOG_LEVEL=debug`:\r\n```\r\nMar 29 14:01:35 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:36 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:38 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:41 localhost systemd-networkd[29786]: IPV4ACD: ANNOUNCE\r\nMar 29 14:01:41 localhost systemd-networkd[29786]: usb1: IPv4 link-local claim 169.254.192.231\r\nMar 29 14:01:41 localhost systemd-networkd[29786]: usb1: Updating address: 169.254.192.231/16 (valid forever)\r\nMar 29 14:01:41 localhost systemd-networkd[29786]: IPV4ACD: DEFEND\r\nMar 29 14:01:42 localhost systemd-networkd[29786]: IPV4ACD: Conflict on 169.254.192.231 (1)\r\nMar 29 14:01:42 localhost systemd-networkd[29786]: usb1: IPv4 link-local release 169.254.192.231\r\nMar 29 14:01:42 localhost systemd-networkd[29786]: IPV4LL: Picked new IP address 169.254.192.231.\r\nMar 29 14:01:42 localhost systemd-networkd[29786]: usb1: Removing address: 169.254.192.231/16 (valid forever)\r\nMar 29 14:01:42 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:44 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:45 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:48 localhost systemd-networkd[29786]: IPV4ACD: ANNOUNCE\r\nMar 29 14:01:48 localhost systemd-networkd[29786]: usb1: IPv4 link-local claim 169.254.192.231\r\nMar 29 14:01:48 localhost systemd-networkd[29786]: usb1: Updating address: 169.254.192.231/16 (valid forever)\r\nMar 29 14:01:48 localhost systemd-networkd[29786]: IPV4ACD: DEFEND\r\nMar 29 14:01:49 localhost systemd-networkd[29786]: IPV4ACD: Conflict on 169.254.192.231 (1)\r\nMar 29 14:01:49 localhost systemd-networkd[29786]: usb1: IPv4 link-local release 169.254.192.231\r\nMar 29 14:01:49 localhost systemd-networkd[29786]: IPV4LL: Picked new IP address 169.254.192.231.\r\nMar 29 14:01:49 localhost systemd-networkd[29786]: usb1: Removing address: 169.254.192.231/16 (valid forever)\r\nMar 29 14:01:49 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:51 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\nMar 29 14:01:53 localhost systemd-networkd[29786]: IPV4ACD: Probing 169.254.192.231\r\n``` \r\n\r\n\r\n\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/systemd/systemd/issues/comments/478897610","html_url":"https://github.com/systemd/systemd/issues/12145#issuecomment-478897610","issue_url":"https://api.github.com/repos/systemd/systemd/issues/12145","id":478897610,"node_id":"MDEyOklzc3VlQ29tbWVudDQ3ODg5NzYxMA==","user":{"login":"diego-sueiro","id":46822139,"node_id":"MDQ6VXNlcjQ2ODIyMTM5","avatar_url":"https://avatars0.githubusercontent.com/u/46822139?v=4","gravatar_id":"","url":"https://api.github.com/users/diego-sueiro","html_url":"https://github.com/diego-sueiro","followers_url":"https://api.github.com/users/diego-sueiro/followers","following_url":"https://api.github.com/users/diego-sueiro/following{/other_user}","gists_url":"https://api.github.com/users/diego-sueiro/gists{/gist_id}","starred_url":"https://api.github.com/users/diego-sueiro/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/diego-sueiro/subscriptions","organizations_url":"https://api.github.com/users/diego-sueiro/orgs","repos_url":"https://api.github.com/users/diego-sueiro/repos","events_url":"https://api.github.com/users/diego-sueiro/events{/privacy}","received_events_url":"https://api.github.com/users/diego-sueiro/received_events","type":"User","site_admin":false},"created_at":"2019-04-02T08:31:04Z","updated_at":"2019-04-02T08:31:04Z","author_association":"NONE","body":"@poettering,\r\nWhy did you close this issue?\r\n\r\nI can still reproduce it with #12150"}}
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