From owner-freebsd-net@freebsd.org Tue Feb 6 22:10:28 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D0F90F0BCC0 for ; Tue, 6 Feb 2018 22:10:27 +0000 (UTC) (envelope-from davida@truespeed.com) Received: from mail.truespeed.com (mail.truespeed.com [31.210.26.210]) by mx1.freebsd.org (Postfix) with ESMTP id 60C4B84E58 for ; Tue, 6 Feb 2018 22:10:27 +0000 (UTC) (envelope-from davida@truespeed.com) Received: from dspam.truespeed.com (localhost [127.0.0.1]) by mail.truespeed.com (Postfix) with SMTP id 328312683FF for ; Tue, 6 Feb 2018 22:10:26 +0000 (UTC) Received: from [192.168.0.19] (cpc130860-hawk18-2-0-cust75.know.cable.virginm.net [77.100.156.76]) (Authenticated sender: davida@truespeed.com) by mail.truespeed.com (Postfix) with ESMTPSA id B9B6E2683F5; Tue, 6 Feb 2018 22:10:25 +0000 (UTC) From: David Athay Message-Id: <293C7809-A1AE-4040-8963-F9A6802CB898@truespeed.com> Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: tcpdump filter not functioning correctly with igb on FreeBSD 11.1 Date: Tue, 6 Feb 2018 22:10:24 +0000 In-Reply-To: <5A7A24DC.0@grosbein.net> Cc: freebsd-net@freebsd.org To: Eugene Grosbein References: <95AA0EAB-B3D6-4E68-83B2-914894D6FB90@truespeed.com> <5A7A1657.4050706@grosbein.net> <5A7A19DD.6050400@grosbein.net> <64C4AA32-5A49-4D6F-B7A7-93CDB0E59F09@truespeed.com> <5A7A24DC.0@grosbein.net> X-Mailer: Apple Mail (2.3273) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Feb 2018 22:10:28 -0000 # /usr/local/sbin/tcpdump --version tcpdump version 4.9.0 libpcap version 1.8.1 OpenSSL 1.0.2n-freebsd 7 Dec 2017 Still same weirdness. # /usr/local/sbin/tcpdump -ni igb0 not port 22 | less tcpdump: verbose output suppressed, use -v or -vv for full protocol = decode listening on igb0, link-type EN10MB (Ethernet), capture size 262144 = bytes 22:03:28.941870 IP X.X.X.X.22 > 77.100.156.Y.52743: Flags [P.], seq = 417632730:417632918, ack 196056259, win 1026, options [nop,nop,TS val = 602028380 ecr 730520401], length 188 22:03:28.969328 IP 77.100.156.Y.52743 > X.X.X.X.22: Flags [.], ack 0, = win 4093, options [nop,nop,TS val 730520446 ecr 602028380], length 0 22:03:28.969342 IP 77.100.156.Y.52743 > X.X.X.X.22: Flags [.], ack 188, = win 4090, options [nop,nop,TS val 730520447 ecr 602028380], length 0 # /usr/local/sbin/tcpdump -ni igb0 not host 77.100.156.Y | less tcpdump: verbose output suppressed, use -v or -vv for full protocol = decode listening on igb0, link-type EN10MB (Ethernet), capture size 262144 = bytes 22:05:58.807570 IP X.X.X.X.22 > 77.100.156.Y.52743: Flags [P.], seq = 418507510:418507698, ack 196060707, win 1026, options [nop,nop,TS val = 602178246 ecr 730669128], length 188 22:05:58.831887 IP 77.100.156.Y.52743 > X.X.X.X.22: Flags [.], ack 0, = win 4093, options [nop,nop,TS val 730669159 ecr 602178246], length 0 22:05:58.838645 IP 77.100.156.Y.52743 > X.X.X.X.22: Flags [.], ack 188, = win 4090, options [nop,nop,TS val 730669159 ecr 602178246], length 0 # /usr/local/sbin/tcpdump -ni igb0 host 77.100.156.Y tcpdump: verbose output suppressed, use -v or -vv for full protocol = decode listening on igb0, link-type EN10MB (Ethernet), capture size 262144 = bytes ^C 0 packets captured 140 packets received by filter 0 packets dropped by kernel =E2=80=94 David Athay Senior DevOps Engineer TrueSpeed Communications Ltd.=20 > On 6 Feb 2018, at 21:57, Eugene Grosbein wrote: >=20 > 07.02.2018 4:33, David Athay =D0=BF=D0=B8=D1=88=D0=B5=D1=82: >> Same issue with tcpdump from ports, looks like its at the same = version. >>=20 >> $ which tcpdump >> /usr/sbin/tcpdump >>=20 >> $ /usr/sbin/tcpdump --version >> tcpdump version 4.9.2 >> libpcap version 1.8.1 >> OpenSSL 1.0.2n-freebsd 7 Dec 2017 >>=20 >> $ /usr/local/sbin/tcpdump --version >> tcpdump version 4.9.2 >> libpcap version 1.8.1 >> OpenSSL 1.0.2n-freebsd 7 Dec 2017 >>=20 >> Ports version is using libpcap from ports too. >=20 > Please deinstall ports' version of tcpdump, fetch previous one: >=20 > fetch = http://pkg.freebsd.org/FreeBSD:11:amd64/release_1/All/tcpdump-4.9.0.txz > pkg install -U tcpdump-4.9.0.txz >=20 > And re-try with /usr/local/sbin/tcpdump of that version. >=20 >=20 >=20