From nobody Tue Jun 14 07:44:12 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 497E3834888 for ; Tue, 14 Jun 2022 07:44:14 +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 4LMgRy0dnLz532t for ; Tue, 14 Jun 2022 07:44:14 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 EB64025BFF for ; Tue, 14 Jun 2022 07:44:13 +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 25E7iDSc027981 for ; Tue, 14 Jun 2022 07:44:13 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 25E7iDjG027980 for net@FreeBSD.org; Tue, 14 Jun 2022 07:44:13 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 261129] IPv6 default route vanishes with rtadvd/rtsold Date: Tue, 14 Jun 2022 07:44:12 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 13.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: zarychtam@plan-b.pwste.edu.pl X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@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 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1655192654; 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=PMxxFKmsr6LUIoQBkAcwwCIR5pimk8/wJyP9dorU9cU=; b=H3MTABLAVnj+U1MNs18z1+XAfchF5BSrvcrijMHVWNYpYrDoOH8iRR8et30uhO9IZdd6ZI USNeOLXH35AXrktdY2aDnP0XCIxBUyQmlp0E74a16fVeWqIZj4S9k6zIxqsYV4Ir6sUN7I zE0uhMeiLJPFUcEKhRiy6l3I6y2zXUi9tOZnqZBWLAIvWr+CwaEJt/KJIgPFHYdpZG8lkt Hfsl52cV+r1md+zRyzE029iMlOFQOWuWliWuf93w0lR58R5LaeOCJwstCKUptiIyo9KDew 09PW+Ykze9xs7jBkc+VYJTRXV7JY02CiiSLqTKD94salF4GRKu53xL5B561Mvg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1655192654; a=rsa-sha256; cv=none; b=vMzc1JeX+0Xq2rA8BlFEJc4+zPwBibWTsQhHO0GcZcmKkcNonzlRZK5VvVAlU/tVrxKSPf OgdWcTK95MeMKGo2B1Y9fmT9XV2u4PFz7Y+3/FZUuJmiOZAZ0Gu6fVOhZS2gZCnu1jrCk/ wGYeyubo16fktDjhXo8ylPUFKt7RsaBbr6uchDYxjnnmwbjxtEwSpL4nQgF7katK4kpphy MW9RVkXbp38PSHjk9KmT3qfvSJS9sICz+O10ZA01WBGYqClsaXLwLqbtboQwvhKrJHyQAx Hh7YyrF82fDZDWS9qcNwnJTP8vhKCrDGIbYJ57loRIt74v+VTe744GkKZ1LC+g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D261129 --- Comment #16 from Marek Zarychta --- After taking some measures and test, so far I came to following conclusions: 1. The default route gets _silently_ corrupted irregardless of deployed route.algo, with no traces observable neither with route(8) monitor nor with increased net.route.algo.debug_level due to unknown reason (overflow ?). 2. Setting net.inet6.ip6.no_radr=3D1 net.inet6.ip6.accept_rtadv=3D0 and respectively disabling these options on the interfaces doesn't prevent the default route from being corrupted. Changing the value of net.add_addr_allf= ibs doesn't help either.=20 3. Restarting "routing" service fixes the issue for some time. 4.FreeBSD routing stack at current state doesn't allow to use in production= two different IPv6 GUA subsets on the same interface neither on 13-STABLE nor CURRENT (tested on amd64 and arm64 archs). 5. PF(4) supports rtable, route-to and reply-to for IPv6 traffic allowing deployment of more advanced network scenarios. 6. IPv6 on FreeBSD still needs more testing, especially in muiltihomed scenarios where multiple FIBs are involved. --=20 You are receiving this mail because: You are on the CC list for the bug.=