From nobody Thu Feb 19 18:42:49 2026 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 4fH2Lm22ZQz6SF6S for ; Thu, 19 Feb 2026 18:42:56 +0000 (UTC) (envelope-from kh@panix.com) Received: from mailbackend.panix.com (mailbackend.panix.com [166.84.1.89]) (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 4fH2Ll2Ndhz3S19 for ; Thu, 19 Feb 2026 18:42:55 +0000 (UTC) (envelope-from kh@panix.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=panix.com header.s=panix header.b=S98syLs1; dmarc=pass (policy=none) header.from=panix.com; spf=pass (mx1.freebsd.org: domain of kh@panix.com designates 166.84.1.89 as permitted sender) smtp.mailfrom=kh@panix.com Received: from [10.0.1.2] (c-76-28-99-183.hsd1.ma.comcast.net [76.28.99.183]) by mailbackend.panix.com (Postfix) with ESMTPSA id 4fH2Lk6ZtSz4srh for ; Thu, 19 Feb 2026 13:42:54 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=panix.com; s=panix; t=1771526574; bh=Akk9WI1iCZTfGmM407vs6DXwQ/bY4Tm2No9EENTamWQ=; h=Date:Subject:To:References:From:In-Reply-To; b=S98syLs1JBR61Rlu0DMYGw3bWr9OdMCsNj36eFnM1lFGm0qLta1/kb2djl9RNkJof DvJLr0R+CFZlLiAhRScNB7mkEPMcI0lhMcM1xenE1890PKfhO8HKlZZnyYbQw54OPr rh6KrEQeXkNg102iNfpLlnfrYvXf39q19Oe57RCw= Message-ID: <517eafdb-2b51-4846-825d-a9f4753276ae@panix.com> Date: Thu, 19 Feb 2026 13:42:49 -0500 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 User-Agent: Mozilla Thunderbird Subject: Re: disabling inet6 on interface wlan0 Content-Language: en-US To: questions@freebsd.org References: From: Kurt Hackenberg In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Result: default: False [-5.19 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; DWL_DNSWL_LOW(-1.00)[panix.com:dkim]; NEURAL_HAM_SHORT(-0.99)[-0.995]; DMARC_POLICY_ALLOW(-0.50)[panix.com,none]; R_SPF_ALLOW(-0.20)[+ip4:166.84.1.64/26]; R_DKIM_ALLOW(-0.20)[panix.com:s=panix]; RWL_MAILSPIKE_GOOD(-0.10)[166.84.1.89:from]; RCVD_IN_DNSWL_LOW(-0.10)[166.84.1.89:from]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_ONE(0.00)[1]; RCPT_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:2033, ipnet:166.84.0.0/16, country:US]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[questions@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MLMMJ_DEST(0.00)[questions@freebsd.org]; RCVD_TLS_ALL(0.00)[]; TO_DN_NONE(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[panix.com:+] X-Rspamd-Queue-Id: 4fH2Ll2Ndhz3S19 X-Spamd-Bar: ----- On 2026/02/19 03:47, Matthias Apitz wrote: > I want to have only inet4 on my WLAN interface and have in > /etc/rc.conf concerning the interface: > > wlans_ath0="wlan0" > ifconfig_wlan0="WPA SYNCDHCP" > ip6addrctl_enable="NO" > ipv6_network_interfaces="none" > ipv6_activate_all_interfaces="NO" > ifconfig_wlan0_ipv6="NO" > > but the interface comes up [with IPv6] ... > How can I disable inet6 completely or at least temporary? Have you looked at /etc/defaults/rc.conf? Search for "ipv6" and "ip6". Also, there's some information in the Handbook, mixed in with other networking information -- for example, in section 7.3.