{"action":"opened","issue":{"url":"https://api.github.com/repos/coreos/bugs/issues/360","labels_url":"https://api.github.com/repos/coreos/bugs/issues/360/labels{/name}","comments_url":"https://api.github.com/repos/coreos/bugs/issues/360/comments","events_url":"https://api.github.com/repos/coreos/bugs/issues/360/events","html_url":"https://github.com/coreos/bugs/issues/360","id":76328352,"number":360,"title":"coreos 647.0.0 dhcp ip renew ","user":{"login":"fragpit","id":11692482,"avatar_url":"https://avatars.githubusercontent.com/u/11692482?v=3","gravatar_id":"","url":"https://api.github.com/users/fragpit","html_url":"https://github.com/fragpit","followers_url":"https://api.github.com/users/fragpit/followers","following_url":"https://api.github.com/users/fragpit/following{/other_user}","gists_url":"https://api.github.com/users/fragpit/gists{/gist_id}","starred_url":"https://api.github.com/users/fragpit/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/fragpit/subscriptions","organizations_url":"https://api.github.com/users/fragpit/orgs","repos_url":"https://api.github.com/users/fragpit/repos","events_url":"https://api.github.com/users/fragpit/events{/privacy}","received_events_url":"https://api.github.com/users/fragpit/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-05-14T11:30:02Z","updated_at":"2015-05-14T11:30:02Z","closed_at":null,"body":"Hello, \r\nrecently some of our coreos servers updated to 647.0.0.  The problem is, that after upadte, each host received new ip address from DHCP. (despite that the lease time is 8 days)\r\nWe use dhcp server on windows 2003. \r\n\r\nIn dhcp console I see, that older versions have mac-address as UniqID, and 647.0.0 hosts have strange uniqid, such as 2d4a9abc00020000ab115ef58edfe274700b\r\n\r\nI found that it is a hex value, and can be converted to ascii, but i get unreadable string after conversion of the ID above. Also, i see, that new UniqID-s have common part, this part depends on which hypervisor CoreOS host is running (we use esxi).\r\n\r\nWhat changes in new version might affect this behaviour?"}}