{"id":745,"date":"2015-09-17T14:59:50","date_gmt":"2015-09-17T12:59:50","guid":{"rendered":"http:\/\/dety.net.ua\/?p=745"},"modified":"2015-09-17T14:59:50","modified_gmt":"2015-09-17T12:59:50","slug":"my-case-arplookup-0-0-0-0-failed-host-is-not-on-local-network","status":"publish","type":"post","link":"https:\/\/dety.net.ua\/?p=745","title":{"rendered":"My case: arplookup 0.0.0.0 failed: host is not on local network"},"content":{"rendered":"

I got strange messages in log: kernel: arplookup 0.0.0.0 failed: host is not on local network.<\/p>\n

When I tried to resolve it for the first time different people in different blogs wrote that it’ok – don’t mind about it.<\/p>\n

Someone adviced turning off the arp logging but I didn’t want.<\/p>\n

I decided to inspect this issue closer.<\/p>\n

After several hours parsing logs, tcpdump, and etc I found it. (tcpdump -v arp).<\/p>\n

It was an ip-phone with default settings for DNS: 0.0.0.0.<\/p>\n

I changed it to my DNS-server and the message disappeared.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

I got strange messages in log: kernel: arplookup 0.0.0.0 failed: host is not on local network. When I tried to resolve it for the first time different people in different blogs wrote that it’ok – don’t mind about it. Someone adviced turning off the arp logging but I didn’t want. I decided to inspect this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,13],"tags":[],"class_list":["post-745","post","type-post","status-publish","format-standard","hentry","category-freebsd","category-novosti"],"_links":{"self":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=745"}],"version-history":[{"count":1,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/745\/revisions"}],"predecessor-version":[{"id":746,"href":"https:\/\/dety.net.ua\/index.php?rest_route=\/wp\/v2\/posts\/745\/revisions\/746"}],"wp:attachment":[{"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dety.net.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}