From nobody Thu Nov 17 03:08:37 2022 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 4NCPxx5QQzz4hw6k for ; Thu, 17 Nov 2022 03:08:37 +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 4NCPxx4KDDz3PgK for ; Thu, 17 Nov 2022 03:08:37 +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=1668654517; 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=YZ5PsCxnZIGJ3QAv5oMPSWJPVWtJgipjQabha7wIohE=; b=HcbgwkA6FzCRD9a7B10+MywFW1Bz0OunIKlJLBSbEn6lKZgpUileZxPDoFckgl1eOUp1ox bZrDS3ptjvptuLLPlVxwC8yLds+OuBMhmFJxOnfl87ctPxDbDNmOibTT+wNQ5qRxGCOCoF 1PAJQnk2kfEBNH6eLMZHmdKhLTmxAc0vQvexQEhowLR+gsEbU8+z2KgnDphDTkt1yWhRHD V6yCaK6nYQ8243UimlutkckL/SUyVXuEmPGrZ8CHrD3gfMHmnKrfJzQ1v7JJ/ICYaZH0oW 4cK9suy3lpwYm5mxNqyqxg2d174FBr+3XI/RGqt7YweKjBh2KdmbS+MnndhV0g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1668654517; a=rsa-sha256; cv=none; b=Qm66CP0ap5FWYsHhuBKmvdjUIPPiuFMy6I8OOeyq3rxDeb8DSMOzgwqpFVVHJxKk95jsDz 5TXlSzaD9xbwwDwDUx6wNlQWjr4VlD+/K98hOTqg9UYHgmEabZWTOpTRlJWvuvZQQz0CBs K3sHfjrXQXuadQrlCoIWaG1DoFjBI6bzier+HAPFzusVOOuIFgB5nO/BTPWXC2OyIPr+RR G68dXtXsYaivxk7WpERLelzIEk10DiIPFpzhg+GIpXvuymkrVad5/QJ30L8Z+P0ISYHgft JNfVTOJrMZ8RxXTrLtiVsN+MK1Ex0rlcl1TeWAQOX3P/xI0j0K+bjIcgiQZVVA== 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 4NCPxx3J5vzRMQ for ; Thu, 17 Nov 2022 03:08:37 +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 2AH38brU050027 for ; Thu, 17 Nov 2022 03:08:37 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 2AH38bqk050026 for net@FreeBSD.org; Thu, 17 Nov 2022 03:08:37 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 265857] qlnxe: no IPV6 pings between nodes on the same switch until an IPv4 address is set Date: Thu, 17 Nov 2022 03:08:37 +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: 13.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: zlei.huang@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@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 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 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265857 --- Comment #29 from Zhenlei Huang --- (In reply to benoitc from comment #26) > I suspect some multicast packets are discarded. >From the pcap you provided, my previous guess is right. While ping6 A(::11) -> B (::12), the initial neighbor solicitation is sent to multicast address ff02::1:ff00:12, the corresponding layer 2 address is 33:33:ff:00:00:12 . For some reason (the qlnx might be not configured correctly) B dropped the = NS packet and then A continuously send NS packets. For destination link-local addresses fe80::b67a:f1ff:fe7a:9952, the corresponding layer 2 address is 33:33:ff:7a:99:52 , and B is willing to ac= cept the NS packet (with multicast dest 33:33:ff:7a:99:52). When the interface is put into promiscuous mode, all multicast addresses are accepted. To workaround it, you either 1) Put the interface ql0 into promiscuous mode by `ifconfig ql0 promisc` 2) Config the public IPv6 address to include last three octets of the ether address. ::7a:9c10 for A, ::7a:9952 for B, e.g. 3) Manually register NDP entries for all nodes. `ndp -s ::12 b4:7a:f1:7a:99:52` on A, e.g. For 1) although it looks overhead to put interface into promiscuous mode, b= ut switches are smart and will filter out unwanted packets. And you can still employ `ipv6_privacy` simultaneously. For 2) you can give it a try if you do not need `ipv6_privacy` and those pu= blic IPv6 addresses can fulfill. For 3) if 2) can not fulfill. You may want some automation tools (Puppet for example) to free up your hands. --=20 You are receiving this mail because: You are the assignee for the bug.=