From nobody Mon Sep 16 20:24:36 2024 X-Original-To: questions@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 4X6xGh2sbDz5Wtly for ; Mon, 16 Sep 2024 20:24:44 +0000 (UTC) (envelope-from fatty.merchandise677@aceecat.org) Received: from beesty.loosely.org (beesty.loosely.org [IPv6:2600:3c01:e000:4c0::2]) (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 4X6xGg6Gt0z43SF for ; Mon, 16 Sep 2024 20:24:43 +0000 (UTC) (envelope-from fatty.merchandise677@aceecat.org) Authentication-Results: mx1.freebsd.org; none Received: from localhost ([::1] helo=beesty ident=itz) by beesty with esmtp (Exim 4.98-4-9cb179d48) (envelope-from ) id 1sqIGx-000000001WO-2Xce for questions@freebsd.org; Mon, 16 Sep 2024 13:24:36 -0700 Date: Mon, 16 Sep 2024 13:24:36 -0700 From: fatty.merchandise677@aceecat.org To: questions@freebsd.org Subject: Re: ipfw + igmp Message-ID: Mail-Followup-To: questions@freebsd.org References: <20240915163823.00004017@seibercom.net> List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-questions@freebsd.org Sender: owner-freebsd-questions@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240915163823.00004017@seibercom.net> X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:63949, ipnet:2600:3c01::/32, country:SG] X-Rspamd-Queue-Id: 4X6xGg6Gt0z43SF On Sun, Sep 15, 2024 at 04:38:23PM GMT, Gerard E. Seibert wrote: > On FreeBSD, IPFW supports both protocols "ipv6-icmp" and "icmp". It > also supports "igmp". I do not see any support for IPv6, however. Is > IPv6 not needed for "igmp"? wikipedia: IGMP is used on IPv4 networks. Multicast management on IPv6 networks is handled by Multicast Listener Discovery (MLD) which is a part of ICMPv6 in contrast to IGMP's bare IP encapsulation. -- Ian