From nobody Wed Jul 19 14:00:08 2023 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4R5cs63yDgz4dVYh for ; Wed, 19 Jul 2023 14:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4R5cs62PKSz3Br2 for ; Wed, 19 Jul 2023 14:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1689775210; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=I6rtMEk7q1s1SqdCZqBa/olkzhtbPgGTqGQnhJU3WKU=; b=oACiuVyEfXPCCwwkTg9etbscLXZGzTarIaAP1HXWJRzLhMsGYX616JOFgyU+aOCx2KejyL 8ZWpCKcuPD+TS7eOR8uINtYbdLMwg9fyc6zBkxy5/TdIoZaq/ZA4EwXybB7YMwxEYQ69kw G5SyJA9bMZwvu9XvbS9tgO31dMpe9SOIXOYN8iVdkSu++HyzvI1rsh8XiG3HxlnHei+5Lg N8cYsDwwdwXUZezUHu1JmcpW5ikMIKuWCtWdwVTYcYkyIz2vGOFBg4Dmjbmnkp2Z/Khrec qnemOMsRycv8WTYwDVtQrdylYbbE1ASOJ6dbNWO1VGFuyAjwfPoXxiGtTl4AqA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1689775210; a=rsa-sha256; cv=none; b=QzmCcKi7vkne9AjTTsw+lphuNeqCs12C3/gr5eJGIh2SBxFJUVuVlYgT+7r62zoM7r+Wp+ pPkNnMJprybqy/wYby8MontORFpOS5Z9R0gNbgXhWlzllxJB9bDVdrE93LpMBs+rvulm6U n7jjdaZDAGdii+npPpdqpjz8MG4oDCbBsvmpg4NXVn9JypfFVNrzjFvt6JI1kNJL2AwbiS vJMnQGB0GO1nKvd5lQAZ+LE45G1Z4npyjYJx9TU+0RVZq5ymyCu8zt8g4/wiVvG/RP7LNm xmAfjYx9v+KKag3U+Ux66lxPRS/OLW0PhaAtxtrdd4n4vAy0qk25FfrjcapB8Q== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4R5cs61V62zqMm for ; Wed, 19 Jul 2023 14:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 36JE0AO0035977 for ; Wed, 19 Jul 2023 14:00:10 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 36JE0AMc035976 for net@FreeBSD.org; Wed, 19 Jul 2023 14:00:10 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: net@FreeBSD.org Subject: [Bug 233683] IPv6 ND neighbor solicitation messages fail to arrive Date: Wed, 19 Jul 2023 14:00:08 +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: 12.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: ae@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233683 Andrey V. Elsukov changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ae@FreeBSD.org --- Comment #15 from Andrey V. Elsukov --- I suspect the problem could be related to some multicast filtering bug in N= IC driver. E.g. recently there was this patch: https://reviews.freebsd.org/D40= 860 It looks most of Intel NICs have this limitation. And when you have many IP= v6 addresses on the host, it is pretty easy overflow 128 entries. Usually when such problem happens, enabling PPROMISC mode should help, since kernel will receive all messages and filter them by self. Also some drivers have ability to enable ALLMULTI mode, when NIC accepts all multicast packets. Using this patch https://people.freebsd.org/~ae/allmulti.diff you can enable this mode as workaround. --=20 You are receiving this mail because: You are the assignee for the bug.=