Date: Thu, 01 Nov 2007 07:36:47 +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: <1193870207.1011.38.camel@viola.izb.knu.ac.kr> In-Reply-To: <20071031181637.X2005@chrishome.localnet> References: <20071031152942.N1222@chrishome.localnet> <1193849325.14557.31.camel@viola.izb.knu.ac.kr> <20071031181637.X2005@chrishome.localnet>
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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" 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, -- "Godfather, Godfather, save me from death, I beg of you." -- Genco Abbandando, "Chapter 1", page 46
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