Date: Thu, 5 Jul 2018 12:22:35 +0200 From: Matthias Apitz <guru@unixarea.de> To: Harry Schmalzbauer <freebsd@omnilan.de> Cc: freebsd-net@freebsd.org Subject: Re: wlan0 && IPv6 Message-ID: <20180705102235.GA2187@c720-r314251> In-Reply-To: <6d1fc346-2122-5f19-04d7-6009a23104f7@omnilan.de> References: <20180704133029.GA19087@sh4-5.1blu.de> <6d1fc346-2122-5f19-04d7-6009a23104f7@omnilan.de>
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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<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> 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<PERFORMNUD,AUTO_LINKLOCAL> media: IEEE 802.11 Wireless Ethernet MCS mode 11ng status: associated ssid filmfestguest channel 12 (2467 MHz 11g ht/20) bssid 00:0f:c9:16:ad:f3 regdomain 108 indoor ecm authmode WPA2/802.11i privacy ON deftxkey UNDEF AES-CCM 3:128-bit txpower 20 bmiss 7 scanvalid 60 protmode CTS ampdulimit 64k ampdudensity 4 shortgi wme burst roaming MANUAL groups: wlan $ netstat -rn Routing tables Internet: Destination Gateway Flags Netif Expire 127.0.0.1 link#1 UH lo0 Internet6: Destination Gateway Flags Netif Expire ::/96 ::1 UGRS lo0 ::1 link#1 UH lo0 ::ffff:0.0.0.0/96 ::1 UGRS lo0 fe80::/10 ::1 UGRS lo0 fe80::%lo0/64 link#1 U lo0 fe80::1%lo0 link#1 UHS lo0 fe80::%wlan0/64 link#2 U wlan0 fe80::9248:9aff:fe92:9e43%wlan0 link#2 UHS lo0 ff02::/16 ::1 UGRS lo0 # Generated by resolvconf nameserver 192.168.2.1 -- Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub May, 9: Спаси́бо освободители! Thank you very much, Russian liberators!
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