Date: Thu, 10 Dec 2015 23:28:02 +0330 From: Hadi Rezaee <h.rezaee@ideatech.io> To: freebsd-net@freebsd.org Subject: problem with tcpdump/netmap Message-ID: <5669D94A.6010505@ideatech.io>
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Hey there, I rebuild my box (FreeBSD 10.2R amd64) with netmap support. Just to check if everything going well, I connected my laptop to another machine in same ip range. The problem is when I issue "tcpdump -i netmap:re0" command to capture packets, I see different results but all of them will fail eventually .. for example: 1) the capturing will start successfully , I'll see some output on screen and after seconds capturing will stop and the interface will lose the IP address! 2) the capturing will start successfully , nothing will printed on screen ... but the interface keep the IP address along with NETMAP flag and at the end the stat will be: 0 packets captured 1904 packets received by filter 0 packets dropped by kernel please note than when i use tcpdump normally (without netmap), the capturing process just run successfully ... Thanks, Hadi
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