{"action":"created","issue":{"url":"https://api.github.com/repos/projectcalico/libnetwork-plugin/issues/66","repository_url":"https://api.github.com/repos/projectcalico/libnetwork-plugin","labels_url":"https://api.github.com/repos/projectcalico/libnetwork-plugin/issues/66/labels{/name}","comments_url":"https://api.github.com/repos/projectcalico/libnetwork-plugin/issues/66/comments","events_url":"https://api.github.com/repos/projectcalico/libnetwork-plugin/issues/66/events","html_url":"https://github.com/projectcalico/libnetwork-plugin/issues/66","id":183643393,"number":66,"title":"about the dummy gateway","user":{"login":"depay","id":8790373,"avatar_url":"https://avatars.githubusercontent.com/u/8790373?v=3","gravatar_id":"","url":"https://api.github.com/users/depay","html_url":"https://github.com/depay","followers_url":"https://api.github.com/users/depay/followers","following_url":"https://api.github.com/users/depay/following{/other_user}","gists_url":"https://api.github.com/users/depay/gists{/gist_id}","starred_url":"https://api.github.com/users/depay/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/depay/subscriptions","organizations_url":"https://api.github.com/users/depay/orgs","repos_url":"https://api.github.com/users/depay/repos","events_url":"https://api.github.com/users/depay/events{/privacy}","received_events_url":"https://api.github.com/users/depay/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"tomdee","id":6635,"avatar_url":"https://avatars.githubusercontent.com/u/6635?v=3","gravatar_id":"","url":"https://api.github.com/users/tomdee","html_url":"https://github.com/tomdee","followers_url":"https://api.github.com/users/tomdee/followers","following_url":"https://api.github.com/users/tomdee/following{/other_user}","gists_url":"https://api.github.com/users/tomdee/gists{/gist_id}","starred_url":"https://api.github.com/users/tomdee/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tomdee/subscriptions","organizations_url":"https://api.github.com/users/tomdee/orgs","repos_url":"https://api.github.com/users/tomdee/repos","events_url":"https://api.github.com/users/tomdee/events{/privacy}","received_events_url":"https://api.github.com/users/tomdee/received_events","type":"User","site_admin":false},"assignees":[{"login":"tomdee","id":6635,"avatar_url":"https://avatars.githubusercontent.com/u/6635?v=3","gravatar_id":"","url":"https://api.github.com/users/tomdee","html_url":"https://github.com/tomdee","followers_url":"https://api.github.com/users/tomdee/followers","following_url":"https://api.github.com/users/tomdee/following{/other_user}","gists_url":"https://api.github.com/users/tomdee/gists{/gist_id}","starred_url":"https://api.github.com/users/tomdee/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tomdee/subscriptions","organizations_url":"https://api.github.com/users/tomdee/orgs","repos_url":"https://api.github.com/users/tomdee/repos","events_url":"https://api.github.com/users/tomdee/events{/privacy}","received_events_url":"https://api.github.com/users/tomdee/received_events","type":"User","site_admin":false}],"milestone":null,"comments":4,"created_at":"2016-10-18T10:08:18Z","updated_at":"2016-10-25T16:19:42Z","closed_at":null,"body":"I’ve upgrade from 0.8.0 to 0.9.0, and my containers became unconnected...Finally i found that the default gateway in my container was `169.254.1.1`, which is changed is #51 . i am still not clear about that after reading the whole PR. Could anyone make some explanation for that? And how could i fix the whole cluster, besides rolling back to v0.8.0?"},"comment":{"url":"https://api.github.com/repos/projectcalico/libnetwork-plugin/issues/comments/256084393","html_url":"https://github.com/projectcalico/libnetwork-plugin/issues/66#issuecomment-256084393","issue_url":"https://api.github.com/repos/projectcalico/libnetwork-plugin/issues/66","id":256084393,"user":{"login":"djosborne","id":3444362,"avatar_url":"https://avatars.githubusercontent.com/u/3444362?v=3","gravatar_id":"","url":"https://api.github.com/users/djosborne","html_url":"https://github.com/djosborne","followers_url":"https://api.github.com/users/djosborne/followers","following_url":"https://api.github.com/users/djosborne/following{/other_user}","gists_url":"https://api.github.com/users/djosborne/gists{/gist_id}","starred_url":"https://api.github.com/users/djosborne/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/djosborne/subscriptions","organizations_url":"https://api.github.com/users/djosborne/orgs","repos_url":"https://api.github.com/users/djosborne/repos","events_url":"https://api.github.com/users/djosborne/events{/privacy}","received_events_url":"https://api.github.com/users/djosborne/received_events","type":"User","site_admin":false},"created_at":"2016-10-25T16:19:42Z","updated_at":"2016-10-25T16:19:42Z","body":"I should have said \"forwarding\", not \"proxying\".\r\n\r\nAfter that ARP comes in, the Host does a \"Proxy ARP Response\" telling the container it has `169.254.1.1` (even though it doesn't). The container should then forward it's traffic to the host.\r\n\r\nThere are no other configurations or components needed besides those two. \r\n\r\nIf you're not seeing an ARP response sent back out that interface, proxy arp must not be functioning correctly. Probably it's going out `eth0` to the host's nexthop? Worth checking if your kernel supports [proxy_arp](http://www.sjdjweis.com/linux/proxyarp/)"}}
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