From nobody Mon Mar 17 09:11:38 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 4ZGTl00SFMz5qHj3 for ; Mon, 17 Mar 2025 09:12:28 +0000 (UTC) (envelope-from freebsd@walstatt-de.de) Received: from smtp6.goneo.de (smtp6.goneo.de [IPv6:2001:1640:5::8:31]) (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 mx1.freebsd.org (Postfix) with ESMTPS id 4ZGTky6YYFz44hD for ; Mon, 17 Mar 2025 09:12:26 +0000 (UTC) (envelope-from freebsd@walstatt-de.de) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=walstatt-de.de header.s=DKIM001 header.b=BjsQo2zA; dmarc=none; spf=pass (mx1.freebsd.org: domain of freebsd@walstatt-de.de designates 2001:1640:5::8:31 as permitted sender) smtp.mailfrom=freebsd@walstatt-de.de Received: from hub2.goneo.de (hub2.goneo.de [85.220.129.53]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by smtp6.goneo.de (Postfix) with ESMTPS id 00FBF240F02 for ; Mon, 17 Mar 2025 10:12:15 +0100 (CET) Received: from hub2.goneo.de (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by hub2.goneo.de (Postfix) with ESMTPS id 66343240443 for ; Mon, 17 Mar 2025 10:12:13 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walstatt-de.de; s=DKIM001; t=1742202733; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=WKE7ppVu+EWypucBtcXErKaS4Ji/G7OC0cpVCJCYawo=; b=BjsQo2zA6BwRdgfeS2b0PSmznXxNSC0+p6dTWgRKyZuJpe6vE9OFvlAXEv0+4ptxFHtXar cC8uvYvM5hacd/PE6nkX113b/qOJz5lUGEwhEchIIdXsH6o1qv0l+SLEYWXWaJrsWzklWp iPOwlZhlEaL/B7eibKisNW2u3D6FMDV3BZ54iXpZbUL02a4UAzwAFNGOdw4HJbu/B7kxK4 tgAbZu66NTbXazYROWu9gY4r+KhMc8kvvTcZgDXZDNGIpp/YsigfVUs09LkfU6cBoZZ9Sc iBFlmhlPGRR/Sz3ShClsGQ/rw4r60ue60uoWtf9gVfzgqaaRlKkdetOmM2W2lA== Received: from thor.sb211.local (dynamic-093-128-029-161.93.128.pool.telefonica.de [93.128.29.161]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by hub2.goneo.de (Postfix) with ESMTPSA id 24C46240872 for ; Mon, 17 Mar 2025 10:12:13 +0100 (CET) Date: Mon, 17 Mar 2025 10:11:38 +0100 From: A FreeBSD User To: freebsd-net@freebsd.org Subject: rtadvd: no temporary address on interface Message-ID: <20250317101205.278275b2@thor.sb211.local> 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 Content-Type: multipart/signed; boundary="Sig_/MLaFHjJ_fpSdWHej2uuqReo"; protocol="application/pgp-signature"; micalg=pgp-sha512 X-Rspamd-UID: 1e0ba4 X-Rspamd-UID: 720903 X-Spamd-Result: default: False [-4.17 / 15.00]; SIGNED_PGP(-2.00)[]; NEURAL_HAM_LONG(-0.98)[-0.982]; NEURAL_HAM_MEDIUM(-0.93)[-0.933]; NEURAL_SPAM_SHORT(0.34)[0.344]; R_SPF_ALLOW(-0.20)[+ip6:2001:1640:5::8:0/112]; R_DKIM_ALLOW(-0.20)[walstatt-de.de:s=DKIM001]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; DMARC_NA(0.00)[walstatt-de.de]; RCPT_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:25394, ipnet:2001:1640::/32, country:DE]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; MISSING_XM_UA(0.00)[]; RCVD_TLS_ALL(0.00)[]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; RCVD_COUNT_THREE(0.00)[3]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[walstatt-de.de:+] X-Rspamd-Queue-Id: 4ZGTky6YYFz44hD X-Spamd-Bar: ---- --Sig_/MLaFHjJ_fpSdWHej2uuqReo Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hello, background: running a small router/firewall appliance based upon FBSD 14-ST= ABLE/IPFW. My ISP provides ::/56 prefixes. Setting up tun0 via mpd5 with KAME dhcp6c (= net/dhcp6) and a textbook standard setup for prefix delegation seems to work. The router's I= SP facing interface is desinated tun0, several (vlan) NICs are facing towards our inner network= , each NIC serving a different network and getting its dedicated prefix. On the router's system, the following MIBs are set: net.inet6.ip6.use_tempaddr: 1 net.inet6.ip6.prefer_tempaddr: 1 Although setting such MIBs on any FreeBSD machine we maintain results in se= tting IPv6 not using the encoded MAC address within the lower 64 bit of the NIC's IPv6 add= ress, I didn't manage to force rtadvd(8) to provide a "temporary" IPv6 address. The NICs obtain delegated prefixes and addresses obviously via SLAAC/EUI64. Is this behaviour a bug? Or do I misunderstand some concepts of FreeBSD and= IPv6? Or is it simply a misconfiguration? Thanks in advance, Oliver --=20 A FreeBSD user --Sig_/MLaFHjJ_fpSdWHej2uuqReo Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iHUEARYKAB0WIQRQheDybVktG5eW/1Kxzvs8OqokrwUCZ9fnZQAKCRCxzvs8Oqok r3anAQDGVUMywxYkO/0tQRGLX2Z6RZHgPHQxvFu4Waww2wSyuQEAltoQJ30Ay81H q3ekhgfmDosMjqfAzISmfB/tm0+CCAg= =Pg0F -----END PGP SIGNATURE----- --Sig_/MLaFHjJ_fpSdWHej2uuqReo--