From owner-freebsd-net@freebsd.org Thu Jul 5 10:42:52 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E9CFD103FBB7 for ; Thu, 5 Jul 2018 10:42:51 +0000 (UTC) (envelope-from freebsd@omnilan.de) Received: from mx0.gentlemail.de (mx0.gentlemail.de [IPv6:2a00:e10:2800::a130]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7957174D5C for ; Thu, 5 Jul 2018 10:42:51 +0000 (UTC) (envelope-from freebsd@omnilan.de) Received: from mh0.gentlemail.de (ezra.dcm1.omnilan.net [IPv6:2a00:e10:2800::a135]) by mx0.gentlemail.de (8.14.5/8.14.5) with ESMTP id w65AgnhM016785 for ; Thu, 5 Jul 2018 12:42:49 +0200 (CEST) (envelope-from freebsd@omnilan.de) Received: from titan.inop.mo1.omnilan.net (s1.omnilan.de [217.91.127.234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mh0.gentlemail.de (Postfix) with ESMTPSA id DD918CD8 for ; Thu, 5 Jul 2018 12:42:48 +0200 (CEST) Subject: Re: wlan0 && IPv6 To: freebsd-net@freebsd.org References: <20180704133029.GA19087@sh4-5.1blu.de> <6d1fc346-2122-5f19-04d7-6009a23104f7@omnilan.de> <20180705102235.GA2187@c720-r314251> From: Harry Schmalzbauer Organization: OmniLAN Message-ID: <0f55bc46-7bcd-b874-a9aa-650f3bf44d48@omnilan.de> Date: Thu, 5 Jul 2018 12:42:48 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180705102235.GA2187@c720-r314251> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (mx0.gentlemail.de [IPv6:2a00:e10:2800::a130]); Thu, 05 Jul 2018 12:42:49 +0200 (CEST) X-Milter: Spamilter (Reciever: mx0.gentlemail.de; Sender-ip: ; Sender-helo: mh0.gentlemail.de; ) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jul 2018 10:42:52 -0000 Am 05.07.2018 um 12:22 schrieb Matthias Apitz: > El día miércoles, julio 04, 2018 a las 04:02:22p. m. +0200, Harry Schmalzbauer escribió: > >> Am 04.07.2018 um 15:30 schrieb Matthias Apitz: >>> Hello, >>> >>> This morning I was in the Wifi area of the Munich Filmfest. They give the SSID >>> and the WPA-2 password to anybody. While my FreeBSD (CURRENT) could associate fine, >>> I did not get any IP addr. My Linux cellphone was working fine out of >>> the box and showed an IPv6 addr in the network interface. >>> >>> How this must be configured in FreeBSD? >> >> It was porbably v6 only (W)LAN. >> dhclient(8) in base does only care about IPv4. >> >> For IPv6 stateless, you need to watch >> sysctl(8) net.inet6.ip6.no_radr >> and >> ifconfig(8) -no_radr >> >> By default, if set ipv6_activate_all_interfaces="YES" in rc.conf(5), I >> think you should get a stateless IPv6 address (since >> net.inet6.ip6.no_radr=0, hence no no_radr flag for your IPv6-enablef >> interface (wlan0)), as long as there's a router in the (W)LAN advertising. >> >> For stateful IPv6, you must install somethink like KAME-dhcp6 >> (ports/net/dhcp6). >> >> But the latter isn't widely deployed, most setups I've seen have routers >> advertising and clients with stateless setup. >> >> Can't tell you out of mind what your rc.conf(5) should look like to >> enable stateless config for distinct interfaces, but I'm sure you'll >> quickly find if you look for the above mentiond key words. >> >> Viel Spass auf'm Filmfest :-) > > Thanks for the reply. I have now in rc.conf the following lines: > > /etc/rc.conf > > wlans_ath0="wlan0" > ifconfig_wlan0="WPA DHCP" > # IPv6 starts here > # add ipv6 entry for wlan0 > ipv6_network_interfaces="wlan0" > # set up wlan0 to accept rtadv(8) advertisements > ifconfig_wlan0_ipv6="inet6 accept_rtadv" > ip6addrctl_enable="YES" > ip6addrctl_policy="ipv6_prefer" > ipv6_activate_all_interfaces="YES" > # ifconfig_wlan0_ipv6="YES" > # IPv6 end here > > And when the interface associates it gives the output attached below for > ifconfig and netstat; but nothing is working, esp. not > > # ping6 www.muc.de > > I have no idea, what's missing... It's not an big issue for me, as I can > use my Linux phone as a hotspot, but would be nice to get this working > for the next year's filmfest. > > matthias > > $ ifconfig wlan0 > > wlan0: flags=8843 metric 0 mtu 1500 > ether 90:48:9a:92:9e:43 > inet6 fe80::9248:9aff:fe92:9e43%wlan0 prefixlen 64 scopeid 0x2 > nd6 options=21 This should read nd6 options=23 Can't tell about the rc.conf(5), sorry. I neither use stateless v6 for any client nor have I used FreeBSD other than static v6 setup, since dhclient(8) doesn't support v6. Try setting 'ifconfig wlan0 inet6 accept_rtadv' manually and if that solves the problem, check why ifconfig_wlan0_ipv6="inet6 accept_rtadv" from rc.conf(5) doesn't work. -harry