{"action":"created","issue":{"url":"https://api.github.com/repos/zmap/zmap/issues/355","repository_url":"https://api.github.com/repos/zmap/zmap","labels_url":"https://api.github.com/repos/zmap/zmap/issues/355/labels{/name}","comments_url":"https://api.github.com/repos/zmap/zmap/issues/355/comments","events_url":"https://api.github.com/repos/zmap/zmap/issues/355/events","html_url":"https://github.com/zmap/zmap/issues/355","id":164816864,"number":355,"title":"Dropped packets","user":{"login":"GreenOut","id":15252503,"avatar_url":"https://avatars.githubusercontent.com/u/15252503?v=3","gravatar_id":"","url":"https://api.github.com/users/GreenOut","html_url":"https://github.com/GreenOut","followers_url":"https://api.github.com/users/GreenOut/followers","following_url":"https://api.github.com/users/GreenOut/following{/other_user}","gists_url":"https://api.github.com/users/GreenOut/gists{/gist_id}","starred_url":"https://api.github.com/users/GreenOut/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/GreenOut/subscriptions","organizations_url":"https://api.github.com/users/GreenOut/orgs","repos_url":"https://api.github.com/users/GreenOut/repos","events_url":"https://api.github.com/users/GreenOut/events{/privacy}","received_events_url":"https://api.github.com/users/GreenOut/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":7,"created_at":"2016-07-11T11:34:33Z","updated_at":"2016-07-12T06:46:27Z","closed_at":null,"body":"Hi,\r\n\r\ni try using zmap with the below listed cmd on ubuntu and centos and on both i get the same errors.\r\n\r\nIt's dropping packets and when the scan is done, it goes in a loop for 135y lol\r\n\r\nI'd highly appreciate any input that can help me resolve the issue. I've already lowered the -r and -P flags but the result is the same. With lower value it scan slower but eventually the error returns.\r\n\r\nUsed cmd: zmap -p 53 -M udp --probe-args=file:access-board.gov.pkt -w 53awk.txt -r 1000 -P 100 -s 1153 -i eth0 | tcpdump -q -n -s 8000 -i eth0 'udp dst port 1153 and not src XX.YY.XX.YY'|awk '{print substr($3,0,length($3)-3) \" \" $8}' > 53dump.txt\r\n\r\n\r\n![error](https://cloud.githubusercontent.com/assets/15252503/16729285/1bb9058c-4774-11e6-8a19-e5a629a3660f.png)\r\n\r\nPCAP using tcpdump -nnXSs 0 'port 1153' -w zmap.pcap\r\nhttps://mega.nz/#!P4IVHaYQ!LNggxcpV6wE0_aTa3uVqph-g6IMhE2oMzlUfLl7vAU0\r\n\r\nThanks :+1: "},"comment":{"url":"https://api.github.com/repos/zmap/zmap/issues/comments/231951732","html_url":"https://github.com/zmap/zmap/issues/355#issuecomment-231951732","issue_url":"https://api.github.com/repos/zmap/zmap/issues/355","id":231951732,"user":{"login":"GreenOut","id":15252503,"avatar_url":"https://avatars.githubusercontent.com/u/15252503?v=3","gravatar_id":"","url":"https://api.github.com/users/GreenOut","html_url":"https://github.com/GreenOut","followers_url":"https://api.github.com/users/GreenOut/followers","following_url":"https://api.github.com/users/GreenOut/following{/other_user}","gists_url":"https://api.github.com/users/GreenOut/gists{/gist_id}","starred_url":"https://api.github.com/users/GreenOut/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/GreenOut/subscriptions","organizations_url":"https://api.github.com/users/GreenOut/orgs","repos_url":"https://api.github.com/users/GreenOut/repos","events_url":"https://api.github.com/users/GreenOut/events{/privacy}","received_events_url":"https://api.github.com/users/GreenOut/received_events","type":"User","site_admin":false},"created_at":"2016-07-12T06:46:27Z","updated_at":"2016-07-12T06:46:27Z","body":"Tested it on a much larger, better server and i get the same issue. First it drops a bunch of packets and then it goes into the long loop.\r\n\r\n1:38 101% (0s left); send: 88125 done (988 p/s avg); recv: 4632 0 p/s (47 p/s avg); drops: 332 p/s (5.02 Kp/s avg); hitrate: 5.26%\r\nJul 12 06:45:28.336 [WARN] monitor: Dropped 707 packets in the last second, (492813 total dropped (pcap: 492813 + iface: 0))\r\n\r\n(As you can see it's already 101% and it continues)"}}
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