From owner-freebsd-net@freebsd.org Fri Jan 4 14:56:43 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 35383142E5DF for ; Fri, 4 Jan 2019 14:56:43 +0000 (UTC) (envelope-from shamim.shahriar@gmail.com) Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id BF3EE6C8FE for ; Fri, 4 Jan 2019 14:56:41 +0000 (UTC) (envelope-from shamim.shahriar@gmail.com) Received: by mail-ed1-x52d.google.com with SMTP id o10so31963685edt.13 for ; Fri, 04 Jan 2019 06:56:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=j9qJxZlb0ya0HLTH2qyvyMTnvLYgNBHdv257o0fAh1M=; b=oMhs6lsIG5lGBuCjmFszbeUjDuSRcYFO5NaeV8p+62/qFWbf3/WrP1nnJCm1QbE7O0 7usimbiqzqzQ64caSP6p/SJNVzXGgMYeDqwwxA5NzKTC/7ewOu09N2QF+B1hzpeVtj5V 34rOaql5AA05mIVo6F2ilTeTEjRc3sTs+Ong6cwf4eHXYnHLKDpTdApxl86HUix9sSix ItdsJKxhXc5T9QMjKPpreBGmV8p5Wyg2Z4aSFJGGiZyHdLzZTlpUo+qWEUChX+mN1V9p mMSPIIdTCzoS51J8oxfhbxf1VK/tIJkHbgVW9QEQYbpE1rpXWvuKf3EsIUAtmW+9gwJm 32GQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=j9qJxZlb0ya0HLTH2qyvyMTnvLYgNBHdv257o0fAh1M=; b=gmX88vpzCV8tUZAJXHYipYTCVRYRhsbdq7Z5lu47L3VU+WKAwPmrlpoRdgeHBDgiwR z1X2fTEkKK2hKIo5P5P8Eh/C4h0uQ+ddFO+ugFRdWLG1mld8YEJo25imtAax9wxJMadl A5IUJfqOjew5OTbWpMtvy+z26HiqVRfFbUH+qKrAQssOz3ZQSlAb1vydHDT6BnSLkvKN KMmhSuKzzcYClShe2SJvVzU/Cnayd7If65yys0fkjLF8rGccL1+596+XerPYbWxYz2eG rV/wgIQhpQQ7bwbBrF2AC5ie9JSNZRgToIhAaePxSEE8pPgqwDJ4zlKw6lSXsrjqOEw0 VTig== X-Gm-Message-State: AA+aEWbrfw1q1gC03Woy9o3zL4IEl7g+N6/sJfIphMPP64P/G3eHymNR rAWHdOC63STUe4Y5tAXkK1AOtxgxZwX13yM6guM62u+N6Q== X-Google-Smtp-Source: AFSGD/Xvw0D0ej8Hdle5AjHPtp93J9dh/r2HVmIohXVAj0Vi25HH6ck8xMPhXv5xhwAdRbm9htmZYebq+rmqaRD6JxM= X-Received: by 2002:a17:906:a455:: with SMTP id cb21-v6mr38781798ejb.185.1546613800044; Fri, 04 Jan 2019 06:56:40 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Shamim Shahriar Date: Fri, 4 Jan 2019 14:56:28 +0000 Message-ID: Subject: Re: IPv6 Broken in 12 To: Hans Petter Selasky Cc: freebsd-net@freebsd.org X-Rspamd-Queue-Id: BF3EE6C8FE X-Spamd-Bar: ----- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=oMhs6lsI; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of shamimshahriar@gmail.com designates 2a00:1450:4864:20::52d as permitted sender) smtp.mailfrom=shamimshahriar@gmail.com X-Spamd-Result: default: False [-5.52 / 15.00]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; NEURAL_HAM_SHORT(-0.97)[-0.968,0]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+,1:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; TAGGED_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[d.2.5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; HTTP_TO_IP(1.00)[]; IP_SCORE(-2.55)[ip: (-9.12), ipnet: 2a00:1450::/32(-1.87), asn: 15169(-1.66), country: US(-0.08)]; RCVD_COUNT_TWO(0.00)[2] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Jan 2019 14:56:43 -0000 Hi Hans Thank you for your response. The problem is NOT with link local -- link local works fine, it is the global one that is not working. i.e., I can ping the router without any issue, I can also ping any of the machines within the same subnet. But the moment I leave the subnet, the connection does not work. The router keeps on sending neighbor solicitation packets which are ignored by my machine. I do not have source loaded on the computer, so might need a bit of time to apply the patch. Given that this is not a link local issue (I think), do you still want me to try out the patch? Thanks and regards On Fri, 4 Jan 2019 at 14:47, Hans Petter Selasky wrote: > On 1/4/19 3:29 PM, Shamim Shahriar wrote: > > Dear List members, good afternoon and happy new year > > > > I am trying to setup a FreeBSD server v12 amd64, and it appears that IPv6 > > on that is actually broken. I have confirmed that by having same hardware > > running v11.2 (amd64), and that is working without any issue. > > > > Preamble: > > The "infrastructure" in question is running mostly Juniper devices, and > the > > routers are advertising everything. So the only thing (related to IPv6) I > > have in my rc.conf are > > > > ifconfig_em0_ipv6="inet6 accept_rtadv" > > rtsold_enable="YES" > > > > This gives the machines an IPv6 from the intended subnet, and also > > configures the defaultroute for the devices > > > > em0: flags=8843 metric 0 mtu 1500 > > > > > options=81209b > > ether 52:54:00:1a:a4:1a > > inet6 fe80::e:f:11:12:a41a%em0 prefixlen 64 scopeid 0x1 > > inet6 a:b:c:d:e:f:11:12:a41a prefixlen 64 autoconf > > inet 172.16.1.23 netmask 0xffffff00 broadcast 172.16.1.255 > > media: Ethernet autoselect (1000baseT ) > > status: active > > nd6 options=23 > > > > > > # netstat -nr > > Routing tables > > > > Internet: > > Destination Gateway Flags Netif Expire > > default 172.16.1.1 UGS em0 > > 127.0.0.1 link#2 UH lo0 > > 172.16.1.0/24 link#1 U em0 > > 172.16.1.23 link#1 UHS lo0 > > > > Internet6: > > Destination Gateway Flags > > Netif Expire > > ::/96 ::1 UGRS > > lo0 > > default fe80::e:f:11:12:200%em0 UG > > em0 > > ::1 link#2 UH > > lo0 > > ::ffff:0.0.0.0/96 ::1 UGRS > > lo0 > > a:b:c:d::/64 link#1 U > > em0 > > a:b:c:d:e:f:11:12:a41a link#1 UHS > > lo0 > > fe80::/10 ::1 UGRS > > lo0 > > fe80::%em0/64 link#1 U > > em0 > > fe80::e:f:11:12:a41a%em0 link#1 UHS > > lo0 > > fe80::%lo0/64 link#2 U > > lo0 > > fe80::1%lo0 link#2 UHS > > lo0 > > ff02::/16 > > > > > > Problem: > > In FreeBSD v12, if I do a tcpdump, it appears that the router is > constantly > > asking who has my IP, and the machine is not responding to it at all. > > > > (running on two different console on the same machine) > > ping6 mx1 > > PING6(56=40+8+8 bytes) a:b:c:d:5054:ff:fe1a:a41a --> 2222:aa:bb:cc::72 > > > > > > # tcpdump -ni em0 icmp6 > > 14:17:18.980755 IP6 a:b:c:d:e:f:11:12:a41a > 2222:aa:bb:cc::72: ICMP6, > echo > > request, seq 0, length 16 > > 14:17:19.617708 IP6 fe80::200:5eff:fe00:200 > ff02::1:ff1a:a41a: ICMP6, > > neighbor solicitation, who has a:b:c:d:e:f:11:12:a41a, length 32 > > 14:17:20.003172 IP6 a:b:c:d:e:f:11:12:a41a > 2222:aa:bb:cc::72: ICMP6, > echo > > request, seq 1, length 16 > > 14:17:20.617615 IP6 fe80::200:5eff:fe00:200 > ff02::1:ff1a:a41a: ICMP6, > > neighbor solicitation, who has a:b:c:d:e:f:11:12:a41a, length 32 > > 14:17:21.023423 IP6 a:b:c:d:e:f:11:12:a41a > 2222:aa:bb:cc::72: ICMP6, > echo > > request, seq 2, length 16 > > > > > > Whereas, if I am running FreeBSD v11.2, it is working alright. I am > getting > > the ping response and what not. > > > > NOTE: Both the v12 and v11.2 was downloaded as of today (in a matter of > > minutes -- not even hours) for setting up the machines. > > > > Could someone please confirm if what I am seeing is expected? If yes, how > > soon is this likely to be fixed? > > > > If you require further information or need me to run more tests, please > do > > let me know. I will have the machines running for some time (reasonable > > time), before I decide which of the two will prevail :D > > > > Thanks and regards > > Hi, > > Can you try the second debug patch mentioned here: > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233535 > > Is this issue isolated to Link-Local IPv6 or is global IPv6 involved > aswell? > > --HPS >