From nobody Fri May 31 21:10:27 2024 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 4VrbPf3cD3z5LP5D for ; Fri, 31 May 2024 21:10:46 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mx1.sbone.de (mx1.sbone.de [IPv6:2a01:4f8:13b:39f::9f:25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx1.sbone.de", Issuer "SBone.DE Root Certificate Authority" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4VrbPc4KFBz4YNW for ; Fri, 31 May 2024 21:10:43 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of bzeeb-lists@lists.zabbadoz.net designates 2a01:4f8:13b:39f::9f:25 as permitted sender) smtp.mailfrom=bzeeb-lists@lists.zabbadoz.net Received: from mail.sbone.de (mail.sbone.de [IPv6:fde9:577b:c1a9:4902:0:7404:2:1025]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sbone.de (Postfix) with ESMTPS id 4843C8D4A126 for ; Fri, 31 May 2024 21:10:34 +0000 (UTC) Received: from content-filter.t4-02.sbone.de (content-filter.t4-02.sbone.de [IPv6:fde9:577b:c1a9:4902:0:7404:2:2742]) (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) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPS id 2D4C52D029D8 for ; Fri, 31 May 2024 21:10:33 +0000 (UTC) X-Virus-Scanned: amavisd-new at sbone.de Received: from mail.sbone.de ([IPv6:fde9:577b:c1a9:4902:0:7404:2:1025]) by content-filter.t4-02.sbone.de (content-filter.t4-02.sbone.de [IPv6:fde9:577b:c1a9:4902:0:7404:2:2742]) (amavisd-new, port 10024) with ESMTP id NvlPy2KiLIBN for ; Fri, 31 May 2024 21:10:28 +0000 (UTC) Received: from strong-iwl0.sbone.de (strong-iwl0.sbone.de [IPv6:fde9:577b:c1a9:4902:b66b:fcff:fef3:e3d2]) (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) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPSA id 6BA882D029D2 for ; Fri, 31 May 2024 21:10:28 +0000 (UTC) Date: Fri, 31 May 2024 21:10:27 +0000 (UTC) From: "Bjoern A. Zeeb" To: net@freebsd.org Subject: tap not (re-)adding IPv6 link-local anymore? Message-ID: <81017311-8q60-9136-5p9r-s1947788932r@yvfgf.mnoonqbm.arg> X-OpenPGP-Key-Id: 0x14003F198FEFA3E77207EE8D2B58B8F83CCF1842 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: text/plain; format=flowed; charset=US-ASCII X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.29 / 15.00]; SUBJECT_ENDS_QUESTION(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.99)[-0.993]; R_SPF_ALLOW(-0.20)[+ip6:2a01:4f8:13b:39f::9f:25]; MIME_GOOD(-0.10)[text/plain]; FROM_HAS_DN(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/32, country:DE]; RCPT_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+]; MISSING_XM_UA(0.00)[]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[net@freebsd.org]; DMARC_NA(0.00)[zabbadoz.net]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_TLS_LAST(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[net@freebsd.org]; ARC_NA(0.00)[] X-Rspamd-Queue-Id: 4VrbPc4KFBz4YNW Hi, using tap with bhyve when I reboot an instance but the tap8 does not get destroyed but re-used it loses it's IPv6 link-local address and as bhyve starts again (remote end comes up) it doesn't come back. I have to manually toggle tap8 down, tap8 up to get the IPv6 link-locla back. Anyone else observing this? /bz -- Bjoern A. Zeeb r15:7