Date: Thu, 01 Nov 2007 14:17:48 +0900 From: Byung-Hee HWANG <bh@izb.knu.ac.kr> To: Christopher Arnold <chris@arnold.se> Cc: freebsd-net@freebsd.org Subject: Re: Correct way to enable ipv6 and sixxs-aiccu? Message-ID: <1193894268.954.13.camel@viola.izb.knu.ac.kr> In-Reply-To: <1193870207.1011.38.camel@viola.izb.knu.ac.kr> References: <20071031152942.N1222@chrishome.localnet> <1193849325.14557.31.camel@viola.izb.knu.ac.kr> <20071031181637.X2005@chrishome.localnet> <1193870207.1011.38.camel@viola.izb.knu.ac.kr>
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and.. On Thu, 2007-11-01 at 07:36 +0900, Byung-Hee HWANG wrote: > On Wed, 2007-10-31 at 18:32 +0100, Christopher Arnold wrote: > > > > On Thu, 1 Nov 2007, Byung-Hee HWANG wrote: > > > > > On Wed, 2007-10-31 at 15:49 +0100, Christopher Arnold wrote: > > >> While brushing up my ipv6 knowledge i ran into an issue with sixxs-aiccu > > >> and configuring ipv6 in rc.conf: > > >> > > >> I have manually configured my gateway to route ipv6 to my internal > > >> network, and this works without problems. > > >> But as soon as i have ipv6_gateway_enable="YES" in /etc/rc.conf rtadvd > > >> doesn't set an ipv6 address on my vr0 interface. (Btw. the only interface > > >> i have on the machine.) > > > > > > Well, we don't know how to you configure your IPv6 router in manual. So > > > you'd better show us the information like your manual scripts if you > > > want to give more correct advices ;; > > > > > Ok to be totally clear: > > # more /etc/rtadvd.conf > > vr0:\ > > :addr="2001:16d8:ff50::":prefixlen#64: > > > > > > Dosn't Work: > > /etc/rc.conf: ipv6_gateway_enable="YES" > > After boot i execute "rtadvd vr0" as root. > > > > Works: > > /etc/rc.conf: ipv6_gateway_enable="NO" > > /etc/syscontrol: net.inet6.ip6.forwarding=1 > > > > After boot i execute "rtadvd vr0" as root. > > > > The difference i belive is the setting of net.inet6.ip6.accept_rtadv=0 in > > /etc/rc.d/network_ipv6 . > > > > >> After digging around a bit i noticed that /etc/rc.d/network_ipv6 sets > > >> net.inet6.ip6.accept_rtadv=0 and if i manually set > > >> net.inet6.ip6.accept_rtadv=1 and then restart rtadvd things work and i get > > >> an address on my interface. > > > > > >> Since i guess dissabling accept_rtadv is done for a reason i wonder what > > >> is the correct way to setup ipv6 in /etc/rc.conf is? > > > > > > Do you have native IPv6 addresses? If you do, i am proud of you. Anyway > > > you need to have a look IPv6 section of FreeBSD Handbook, rtadvd(8) and > > > rtadvd.conf(5). It will give you help. And you need to study IPv6 stuff > > > because it is not as easy as it seems, AFAIK. I mean you can solve your > > > matters if you study more. > > > > > Im trying as we speak, just wanted some input on how things are supposed > > to work. > > > > Im running /usr/ports/net/sixxs-aiccu to bring up the tunnel and my > > adresses are assigned from them. www.sixxs.net for more information. > > > > The tunnel works all the time (on the tun0 interface) so there isn't a > > problem with my ipv6 connectivity. So i guess my question is: "Why is > > net.inet6.ip6.accept_rtadv=0 in /etc/rc.d/network_ipv6 and how am i > > supposed to configure ipv6 in /etc/rc.conf?" > > > > PS: sixxs-aiccu is run from /usr/local/etc/rc.d/ so the reason things > > doesn't work could be related to the fact that my tunnel goes live late in > > the boot. > > To solve your matters, > i tested an IPv6 rules by 6to4 with two FreeBSD machines. > > 1st machine is IPv6 router by rtadv(8). // 4.11-RELEASE > 2nd machine is IPv6 host as endhost. // 7.0-BETA1 > > ### > ### 1st machine's /etc/rc.conf: Router > ### > # IPv6: with rtadvd(8) > ipv6_enable="YES" > ipv6_network_interfaces="auto" > ipv6_gateway_enable="YES" > ipv6_prefix_ed1="2002:9be6:9d5d:0002" > stf_interface_ipv4addr="155.230.157.93" > stf_interface_ipv6_slaid="0001" > ipv6_static_routes="default" > ipv6_route_default="default 2002:c058:6301::" > ipv6_ifconfig_ed1="2002:9be6:9d5d:2:0050:4d00:fe78:5df3 prefixlen 64" > rtadvd_enable="YES" > rtadvd_interfaces="ed1" > > ### > ### 2nd machine's /etc/rc.conf: End-Host > ### > # IPv6: getting autoconfigured > # net.inet6.ip6.accept_rtadv=1 (in /etc/sysctl.conf) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > ipv6_enable="YES" Above net.inet6.ip6.accetp_rtadv value is made by rtsol(8) on boot if you set just one line (ipv6_enable="YES") in /etc/rc.conf ;; So we don't need to force the value (net.inet6.ip6.accept_rtadvd) manually. I verified the scenario by testing again with 7.0-BETA1 machine. Yep, the 7.0-BETA machine is the End-Host. > bh@viola:~> ping6 -c 3 castle.jp.freebsd.org. > PING6(56=40+8+8 bytes) 2002:9be6:9d5d:2:20b:6aff:fe56:969f --> > 2001:218:422:1::15 > 16 bytes from 2001:218:422:1::15, icmp_seq=0 hlim=49 time=388.469 ms > 16 bytes from 2001:218:422:1::15, icmp_seq=1 hlim=49 time=378.904 ms > 16 bytes from 2001:218:422:1::15, icmp_seq=2 hlim=49 time=395.308 ms > > --- castle.jp.freebsd.org ping6 statistics --- > 3 packets transmitted, 3 packets received, 0.0% packet loss > round-trip min/avg/max/std-dev = 378.904/387.560/395.308/6.728 ms > bh@viola:~> > > After all, > two machines works fine each other without any problems. > > Then you can figure out later your own answer. > > Sincerely, > -- "I would work for you like your sons." -- Tom Hagen, "Chapter 1", page 52
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