From nobody Sat Sep 13 20:47:54 2025 X-Original-To: freebsd-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 4cPNgZ2CkPz67WHd for ; Sat, 13 Sep 2025 20:48:58 +0000 (UTC) (envelope-from cross+freebsd@relay.distal.com) Received: from relay.wiredblade.com (relay.wiredblade.com [168.235.95.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4cPNgY3D55z3VWX for ; Sat, 13 Sep 2025 20:48:57 +0000 (UTC) (envelope-from cross+freebsd@relay.distal.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=relay.distal.com header.s=mail header.b=QBGf+RWM; dmarc=none; spf=pass (mx1.freebsd.org: domain of cross+freebsd@relay.distal.com designates 168.235.95.80 as permitted sender) smtp.mailfrom=cross+freebsd@relay.distal.com dkim-signature: v=1; a=rsa-sha256; d=relay.distal.com; s=mail; c=relaxed/relaxed; q=dns/txt; h=From:Subject:Date:Message-ID:To:MIME-Version:Content-Type:Content-Transfer-Encoding; bh=nRLSzlXhm8gAAlkCKd9cw101guEuB8vNIq5qKFdk/NQ=; b=QBGf+RWMAaMPUnkuwa724tyxWcgLv1fbzzOATGayt2HKDAKShf+w9U4M3psAtE4rw9WFGd2mD4gJT00BWaJkQUzPHTObRXoxZpgHW5ebh11nm5ziJ9ikprOSd9i0x0g0T7mcRcyUI/ivFua5CBt49oVplRCZcXaQFgjSWS9tHKw+dkCvvkC5KNL2E6yTcpKXHcDldqVXKTiqUoS84Vl/aOrW0MlvaynFTvcMyo53j5QA1NjmbPFcOzR1Og 62eHukrBpvms8DyoMDBKurqcFGvyeQot3yfZclUV6hbxNPGtvI9IJZZ1/ZKIC1i9hOUKCTaol4mBr5xD1RRULdx1j2Mw== Received: from mail.distal.com (pool-108-51-233-124.washdc.fios.verizon.net [108.51.233.124]) by relay.wiredblade.com with ESMTPSA (version=TLSv1.2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256) ; Sat, 13 Sep 2025 20:48:50 +0000 Received: from smtpclient.apple ( [2600:4040:2c9d:5220:743e:d53:355b:23ea]) by tristain.distal.com (OpenSMTPD) with ESMTPSA id 1ff777cd (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256:NO) for ; Sat, 13 Sep 2025 16:48:40 -0400 (EDT) From: Chris Ross Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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 (Mac OS X Mail 16.0 \(3826.700.81\)) Subject: IPv6 networking problems in 14.3 Message-Id: Date: Sat, 13 Sep 2025 16:47:54 -0400 To: freebsd-net@freebsd.org X-Mailer: Apple Mail (2.3826.700.81) X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.20 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; FORGED_SENDER(0.30)[cross@distal.com,cross@relay.distal.com]; R_SPF_ALLOW(-0.20)[+a:relay.dynu.com]; R_DKIM_ALLOW(-0.20)[relay.distal.com:s=mail]; MIME_GOOD(-0.10)[text/plain]; RCPT_COUNT_ONE(0.00)[1]; RCVD_TLS_ALL(0.00)[]; TAGGED_FROM(0.00)[freebsd]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ARC_NA(0.00)[]; DKIM_TRACE(0.00)[relay.distal.com:+]; DMARC_NA(0.00)[distal.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_DN_NONE(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_NEQ_ENVFROM(0.00)[cross@distal.com,cross@relay.distal.com]; ASN(0.00)[asn:3842, ipnet:168.235.92.0/22, country:US]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; APPLE_MAILER_COMMON(0.00)[]; FROM_HAS_DN(0.00)[] X-Rspamd-Queue-Id: 4cPNgY3D55z3VWX Hello all. My primary home router is a FreeBSD 14 system, with an = outside connection to Verizon, through a direct connection to the ONT. = (ie, no Verizon router/bridge involved). I did a bunch of work last = year, running 14.1, to get IPv6 working with what they provided, and it = was all working alright until I upgraded the system for 14.3 a month or = so ago. I noticed some problem immediately with dhcpcd=E2=80=99s = logging, which I assumed was from running an older version I built = myself, and I switched to the one in ports which seemed okay (to my = eyes, but I fear I may not actually have tested it). Tl;dr; I am not able to get IPv6 traffic in and out of my house through = Verizon. I reached out to Roy Marples, who had helped me get this all = set up using dhcpcd a year ago. But, after looking for a bit, I think = it=E2=80=99s not dhcpcd that is the problem. Dhcpcd sends a router solicitation (RS) out and immediately gets an RA = back, including the delegated IPv6 network I am expecting. Then, it = sends a neighbor solicitation (NS) and never gets an answer. A few = seconds later dhcpcd reports "vlan0: fe80::3e8a:b0ff:fe3e:4dce is = unreachable=E2=80=9D and begins the router solicitation process over. = This happens every few seconds. I=E2=80=99ve assigned the delegated = networks internally, but nothing works since I can=E2=80=99t send any = traffic out. The RA is coming from "fe80::3e8a:b0ff:fe3e:4dce=E2=80=9D on vlan0, but = there is never a routable address: % ndp -an | grep 'fe80::3e8a:b0ff:fe3e:4dce' fe80::3e8a:b0ff:fe3e:4dce%vlan0 (incomplete) vlan0 expired = I=20 The NS I=E2=80=99m sending is to ff02::1:ff3e:4dce, but I=E2=80=99m = never getting an answer. It looks like I=E2=80=99m never getting any = NAs. I=E2=80=99ve tried turning on effectively =E2=80=9Callow all = icmpv6=E2=80=9D in my pf.conf, and still seeing this. And the pf.conf = hadn=E2=80=99t changed since it was working in 14.1 a couple months ago. Just looking for next steps now. Interfaces are all vlan interfaces on = an ix device running at 1gb/s. Is there any known issue in = 14.3-RELEASE-p1 ? Thank you. - Chris=