From nobody Mon May 19 17:28:11 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 UTF8SMTP id 4b1Pm34Bmgz5w8mm for ; Mon, 19 May 2025 17:28:19 +0000 (UTC) (envelope-from paul@redbarn.org) Received: from util.redbarn.org (util.redbarn.org [24.104.150.222]) (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 "*.redbarn.org", Issuer "RapidSSL TLS RSA CA G1" (verified OK)) by mx1.freebsd.org (Postfix) with UTF8SMTPS id 4b1Pm21WZpz3hsq for ; Mon, 19 May 2025 17:28:18 +0000 (UTC) (envelope-from paul@redbarn.org) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=redbarn.org header.s=util header.b="Fkvi77/g"; spf=pass (mx1.freebsd.org: domain of paul@redbarn.org designates 24.104.150.222 as permitted sender) smtp.mailfrom=paul@redbarn.org; dmarc=pass (policy=reject) header.from=redbarn.org Received: from family.redbarn.org (family.redbarn.org [24.104.150.213]) (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 "*.redbarn.org", Issuer "RapidSSL TLS RSA CA G1" (not verified)) by util.redbarn.org (Postfix) with UTF8SMTPS id 441AF160B98 for ; Mon, 19 May 2025 17:28:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=redbarn.org; s=util; t=1747675690; bh=IrogkLzBl/KOvp8xvfaJ4yEsuifw3KLGOD22R6VJOxI=; h=Date:From:To:In-Reply-To:References:Subject; b=Fkvi77/gErLden1o4iFjztS8jiiSRCSd3VTUNd+joSZVZS0IK7cCUyCIj+Z/0wZ5e M79uqTy/CS24kQAABnBhUaVDIto/wOtwKVo2Vr2UIWPVups5h6N2BlAZsjXRZhfgv+ SA2AShQV7BcEt6ldkiCJ2infI/a6e/UNrpmk9WfA= Received: from dummy.faircode.eu (dhcp-151.access.rits.tisf.net [24.104.150.151]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by family.redbarn.org (Postfix) with UTF8SMTPSA id 1447B9 for ; Mon, 19 May 2025 17:28:10 +0000 (UTC) Date: Mon, 19 May 2025 13:28:11 -0400 (EDT) From: Paul Vixie To: freebsd-net@freebsd.org Message-ID: <7a54f675-3c39-43a7-8e06-f63857c3bf91@redbarn.org> In-Reply-To: References: Subject: =?UTF-8?Q?HEADS_UP:_15.0-CURRENT,_change_to_bridge(4)_might_bre?= =?UTF-8?Q?ak_some_network_configurati?= =?UTF-8?Q?ons_with_=E2=80=9CInvalid_argument=E2=80=9D?= 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/alternative; boundary="----=_Part_27_7509653.1747675691659" X-Correlation-ID: <7a54f675-3c39-43a7-8e06-f63857c3bf91@redbarn.org> X-Rspamd-Queue-Id: 4b1Pm21WZpz3hsq X-Spamd-Bar: ----- X-Spamd-Result: default: False [-5.05 / 15.00]; DWL_DNSWL_LOW(-1.00)[redbarn.org:dkim]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.95)[-0.952]; DMARC_POLICY_ALLOW(-0.50)[redbarn.org,reject]; R_DKIM_ALLOW(-0.20)[redbarn.org:s=util]; R_SPF_ALLOW(-0.20)[+ip4:24.104.150.0/24]; RCVD_IN_DNSWL_LOW(-0.10)[24.104.150.213:received]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCPT_COUNT_ONE(0.00)[1]; MISSING_XM_UA(0.00)[]; FREEFALL_USER(0.00)[paul]; ASN(0.00)[asn:33651, ipnet:24.104.150.0/24, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; DKIM_TRACE(0.00)[redbarn.org:+] ------=_Part_27_7509653.1747675691659 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit If we move all member ifaddrs to the bridge itself, then will arp requests always have to be broadcast on all member interfaces? If so this is intolerable from a security perspective, a complete nonstarter. ------=_Part_27_7509653.1747675691659 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit If we move all member ifaddrs to the bridge itself, then will arp requests always have to be broadcast on all member interfaces? If so this is intolerable from a security perspective, a complete nonstarter.
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