{"action":"created","issue":{"url":"https://api.github.com/repos/docker/docker/issues/14807","labels_url":"https://api.github.com/repos/docker/docker/issues/14807/labels{/name}","comments_url":"https://api.github.com/repos/docker/docker/issues/14807/comments","events_url":"https://api.github.com/repos/docker/docker/issues/14807/events","html_url":"https://github.com/docker/docker/issues/14807","id":96332861,"number":14807,"title":"Virtual interfaces are entering/leaving promiscuous mode","user":{"login":"aaronjwood","id":446283,"avatar_url":"https://avatars.githubusercontent.com/u/446283?v=3","gravatar_id":"","url":"https://api.github.com/users/aaronjwood","html_url":"https://github.com/aaronjwood","followers_url":"https://api.github.com/users/aaronjwood/followers","following_url":"https://api.github.com/users/aaronjwood/following{/other_user}","gists_url":"https://api.github.com/users/aaronjwood/gists{/gist_id}","starred_url":"https://api.github.com/users/aaronjwood/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aaronjwood/subscriptions","organizations_url":"https://api.github.com/users/aaronjwood/orgs","repos_url":"https://api.github.com/users/aaronjwood/repos","events_url":"https://api.github.com/users/aaronjwood/events{/privacy}","received_events_url":"https://api.github.com/users/aaronjwood/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-07-21T14:36:09Z","updated_at":"2015-07-21T14:51:37Z","closed_at":null,"body":"For some containers that are launched and stopped or killed (due to errors with what's running inside of them) I'm seeing logs that the virtual interfaces are entering and leaving promiscuous mode. These containers are running with the normal `bridge` networking mode. Example:\r\n\r\n```\r\ndevice veth0bb1f1f entered promiscuous mode\r\ndevice veth0bb1f1f left promiscuous mode\r\n```\r\n\r\nMost of the containers aren't running with any special privileges or capabilities. There is one that runs with `--privileged` but it exhibits the same behavior as all the others. Another thing to note is that none of the other interfaces on the host are in promiscuous mode.\r\n\r\nWhat could be causing this. It doesn't seem to be consistent and I have been unable to reproduce it on a Ubuntu machine with the same Docker version. Here's some info about the environment it's happening in:\r\n\r\n```\r\ndocker version\r\nClient version: 1.5.0\r\nClient API version: 1.17\r\nGo version (client): go1.3.3\r\nGit commit (client): a8a31ef-dirty\r\nOS/Arch (client): linux/amd64\r\nServer version: 1.5.0\r\nServer API version: 1.17\r\nGo version (server): go1.3.3\r\nGit commit (server): a8a31ef-dirty\r\n```\r\n\r\n```\r\ndocker info\r\nContainers: 14\r\nImages: 271\r\nStorage Driver: overlay\r\n Backing Filesystem: extfs\r\nExecution Driver: native-0.2\r\nKernel Version: 3.19.3\r\nOperating System: CoreOS 647.0.0\r\nCPUs: 40\r\nTotal Memory: 125.9 GiB\r\n```\r\n\r\n```\r\nuname -a\r\nLinux 3.19.3 #2 SMP Thu Apr 9 01:47:33 UTC 2015 x86_64 Intel(R) Xeon(R) CPU E5-2660 v2 @ 2.20GHz GenuineIntel GNU/Linux\r\n```"},"comment":{"url":"https://api.github.com/repos/docker/docker/issues/comments/123355642","html_url":"https://github.com/docker/docker/issues/14807#issuecomment-123355642","issue_url":"https://api.github.com/repos/docker/docker/issues/14807","id":123355642,"user":{"login":"cpuguy83","id":799078,"avatar_url":"https://avatars.githubusercontent.com/u/799078?v=3","gravatar_id":"","url":"https://api.github.com/users/cpuguy83","html_url":"https://github.com/cpuguy83","followers_url":"https://api.github.com/users/cpuguy83/followers","following_url":"https://api.github.com/users/cpuguy83/following{/other_user}","gists_url":"https://api.github.com/users/cpuguy83/gists{/gist_id}","starred_url":"https://api.github.com/users/cpuguy83/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cpuguy83/subscriptions","organizations_url":"https://api.github.com/users/cpuguy83/orgs","repos_url":"https://api.github.com/users/cpuguy83/repos","events_url":"https://api.github.com/users/cpuguy83/events{/privacy}","received_events_url":"https://api.github.com/users/cpuguy83/received_events","type":"User","site_admin":false},"created_at":"2015-07-21T14:51:36Z","updated_at":"2015-07-21T14:51:36Z","body":"Seems like something on the host may be doing this...\r\nBut in any case, the latest release of docker, 1.7, includes a complete rewrite of Docker's networking code.\r\nIt would be good to upgrade to 1.7 so we can troubleshoot against the existing code base."}}