From nobody Mon Sep 09 17:56:58 2024 X-Original-To: bugs@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 4X2ZKQ2KYYz5TYxl for ; Mon, 09 Sep 2024 17:56:58 +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 "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4X2ZKQ12xrz4DPc for ; Mon, 9 Sep 2024 17:56:58 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1725904618; a=rsa-sha256; cv=none; b=I2rrzTVUhfZy3VLD7epdffiPa51Ueq3uKtsjak6osjH8i3u0vDWnEfIRcFsRFaLaAHMXa5 6Ts+ROZ3q1AKDuDM1ldWcqTfdllKmeoXctbtOeYGNJh6HOe//jkkpcaAMrwvb21iAEuPqN hC3bS2thYtY95DD5JgStkl2zCPFo0bq8H1oZw2piSG0JNp/pdTuAoiCT0BpOn5nZLfdEGG ROHNvILdaOaAIefovAf9YjGBHZ3ZEEw0iV4fpDrCovDpnZUqZHJYZCVGCDGPcarQ7ShPYP Z3PfK6q+yGHBLwhxsZR9Sr4/hQBR0ANVKZUZZ19efhVGpiGOwQw04NLiYHLK9g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1725904618; 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; bh=CkLEL7Io1RfTQx4u4hx0GoQXwJAc71J057XRmhmlwI0=; b=YiS6ct1Tb/Gd5s6lu1lqwrqzVLjznU5HfvhMIuguoklZfeup6T2ZAkWErX5Sevw4YKanTV PUhTkWZMizN5LGxOepTL7blqbQ5Yojc6cwe50gcBzYmUuiNb6c7+b08/McS6KpDh5Vu2NY XuOZHuHsuaqxAi4BzhEZH5XYIHv9qQFQGh1p/uJNbd6boA/Eq+o3u3J+KloPFLJbS87M5Q lSsJzIYxQnmSnKLf4NcX9YaW2gI9pP8TBzVXDfrz4g9rkt5xyJKjZs2BmuHwpJd4yp7NhC DYGca8d45osrAvX3DJtcSsLcE+v/mzZVVOm/ccyJ5shSPd8jvLc7IYMFJCfiRw== 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 4X2ZKQ0fffz1CdK for ; Mon, 9 Sep 2024 17:56:58 +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 489HuveJ013624 for ; Mon, 9 Sep 2024 17:56:57 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 489HuvrW013623 for bugs@FreeBSD.org; Mon, 9 Sep 2024 17:56:57 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: bugs@FreeBSD.org Subject: [Bug 281395] FreeBSD-SA-24:05 fix breaks ICMPv6 neighbor discovery Date: Mon, 09 Sep 2024 17:56:58 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: freebsd_email@congenio.de X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D281395 Bug ID: 281395 Summary: FreeBSD-SA-24:05 fix breaks ICMPv6 neighbor discovery Product: Base System Version: 14.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: freebsd_email@congenio.de As already stated in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D28= 0701, FreeBSD-SA-24:05 causes ICMPv6 neighbor discovery to fail. I quote the info given there by Franco: According to multiple users the ICMP patch series causes stalls in neighbor discovery and only a full revert brings back the desired behaviour. A TCP dump showed that the Cisco is sending ICMP6 neighbour solicitations, which are answered by the opnsense with a large delay. The cisco switch looses it's IPv6 neighbour. tcpdump -n -i ix0 icmp6 and host fe80::86b8:2ff:fe1a:c67f 07:34:42.764553 IP6 fe80::86b8:2ff:fe1a:c67f > 2001:xxxx:x:x::x:2: ICMP6, neighbor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:43.852542 IP6 fe80::86b8:2ff:fe1a:c67f > 2001:xxxx:x:x::x:2: ICMP6, neighbor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:44.940525 IP6 fe80::86b8:2ff:fe1a:c67f > 2001:xxxx:x:x::x:2: ICMP6, neighbor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:46.094207 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:47.120778 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:48.201460 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:49.336747 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:50.360952 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:51.385618 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:52.436467 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:53.529962 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:54.617082 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:55.717592 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:56.765964 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:57.796680 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:58.888994 IP6 fe80::86b8:2ff:fe1a:c67f > ff02::1:ff56:2: ICMP6, neigh= bor solicitation, who has 2001:xxxx:x:x::x:2, length 32 07:34:58.889051 IP6 fe80::3eec:efff:fe70:7326 > fe80::86b8:2ff:fe1a:c67f: ICMP6, neighbor advertisement, tgt is 2001:xxxx:x:x::x:2, length 32 via: https://github.com/opnsense/src/issues/217 If you want to construct a test setup to cover this, try directing the following command from another machine to a FreeBSD machine and look at the results: while : do ndisc6 -m -n -r 1 fe80::1111:2222:3333:4444 eth0 done Of course, fill in the target's EUI-64 instead of 1111:2222:3333:4444 and u= se the correct interface instead of eth0. You will find that a machine with the SA applied does not always respond in= due time to these requests and the requests time out, whereas a machine without= the SA always answers correctly. P.S.: As noted, this is another fallout of not applying the full set of Ope= nBSD patches to address the issus with stateful ICMPv6 handling introduced by the SA. --=20 You are receiving this mail because: You are the assignee for the bug.=