From owner-freebsd-ipfw@freebsd.org Sat Jan 13 04:10:04 2018 Return-Path: Delivered-To: freebsd-ipfw@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 95D5DE714BA for ; Sat, 13 Jan 2018 04:10:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 7BA7D72167 for ; Sat, 13 Jan 2018 04:10:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 70C9A1D220 for ; Sat, 13 Jan 2018 04:10:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w0D4A4sF027141 for ; Sat, 13 Jan 2018 04:10:04 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w0D4A42k027140 for freebsd-ipfw@FreeBSD.org; Sat, 13 Jan 2018 04:10:04 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: freebsd-ipfw@FreeBSD.org Subject: [Bug 224730] ipfw dyn_keepalive sends a strange packet Date: Sat, 13 Jan 2018 04:10:04 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hossy-fbsd@hossy.flnet.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-ipfw@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 13 Jan 2018 04:10:04 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224730 --- Comment #3 from hossy-fbsd@hossy.flnet.org --- All right, you say this packet is a expected behavior. BTW, `netstat -s' shows this packet as `completely duplicate packets'. If this packet is for keep-alive, I want `netstat -s' to count up `duplicate acks'. Because ACK only packet for normal keep-alive is counted as `duplicate acks= '. And I'm understanding `completely duplicate packets' is for analyzing for T= CP packet retransmitted. This is a implementation mismatch between ipfw and kern.tcp, isn't it? --=20 You are receiving this mail because: You are the assignee for the bug.=