Have you tried ping6 -n ff02::2%re0 ? Does anyone respond? Try using the respond(ers) as your IPv6 default gateway.
Link local is best for IPv6 gateways for various reasons, if your upstream isn't picky (unlike he.net tunnels, for example). Penned by Moritz Grimm on 20110313 6:43.32, we have: | Hi, | | | after a couple of days of running into dead ends, I would appreciate | some help. | | To summarize: For more than 3 years I'm successfully running OpenBSD | (it's now at OPENBSD_4_9/i386, running GENERIC.MP) at the German hoster | Hetzner as my expensive little plaything. They offer native IPv6 for | some time now, and I want to use it. However, the same methodology used | with IPv4 does not work with IPv6 and I just can't figure out why (it's | supposed to work identically.) | | | The working IPv4 setup: | | Additional network is 78.47.124.160/29, the gateway is 78.46.41.129/27. | In /etc/hostname.re0 is the aliases and the route to the gateway of that | network: | | inet alias 78.47.124.161 255.255.255.248 78.47.124.167 | [...] | !route add -inet -iface -ifp re0 -net 78.46.41.128 78.46.41.129 -netmask | 255.255.255.224 | | I set the default gateway 78.46.41.129 in the first line of /etc/mygate. | This works: | | $ ping -I 78.47.124.161 www.google.com | PING www.l.google.com (74.125.77.147): 56 data bytes | 64 bytes from 74.125.77.147: icmp_seq=0 ttl=56 time=16.943 ms | [...] | | | The IPv6 setup (broken): | | The IPv6 network is supposed to be 2a01:4f8:110:4363::/64, the gateway | is 2a01:4f8:110:4360::1/59. So again there's the aliases in | /etc/hostname.re0 ... | | [...] | inet6 alias 2a01:4f8:110:4363::42 64 | [...] | !route add -inet6 -iface -ifp re0 -net 2a01:4f8:110:4360:: -prefixlen 59 | 2a01:4f8:110:4360::1 | | The second line in /etc/mygate sets the IPv6 default gateway | 2a01:4f8:110:4360::1. This does not work: | | $ ping6 ipv6.google.com | PING6(56=40+8+8 bytes) 2a01:4f8:110:4363::42 --> 2a00:1450:8005::68 | ping6: sendmsg: No route to host | ping6: wrote ipv6.l.google.com 16 chars, ret=-1 | | | A look at the routing table shows various differences between IPv4 and | IPv6. Again, the working IPv4 entries first: | | default 78.46.41.129 UGS 19 6792145 - 8 re0 | 78.46.41.128/27 link#1 UC 2 0 - 4 re0 | 78.46.41.128/27 link#1 UCS 0 0 - 8 re0 | 78.46.41.129 00:26:88:76:21:1b UHLc 1 0 - 4 re0 | 78.46.41.142 00:1d:92:39:57:54 UHLc 0 6 - 4 lo0 | 78.47.124.160/29 link#1 UC 0 0 - 4 re0 | 78.47.124.161 127.0.0.1 UGHS 0 97 33200 8 lo0 | | (.142 is the main IP of mrsserver.net) | | As can be seen, everything resolves nicely ... by comparison, IPv6 looks | fubar'd: | | default 2a01:4f8:110:4360::1 UGS 0 11 - 8 re0 | 2a01:4f8:110:4360::/59 2a01:4f8:110:4360::1 US 1 0 - 8 re0 | 2a01:4f8:110:4363::/64 link#1 UC 0 0 - 4 re0 | 2a01:4f8:110:4363::42 00:1d:92:39:57:54 HL 0 0 - 4 lo0 | | That's it, nothing else from these networks, and the local host route | for ::42 isn't even (U)p. | | ndp -a shows: | | Neighbor Linklayer Address Netif Expire S Flags | 2a01:4f8:110:4363::42 0:1d:92:39:57:54 re0 permanent R | fe80::21d:92ff:fe39:5754%re0 0:1d:92:39:57:54 re0 permanent R | fe80::1%lo0 (incomplete) lo0 permanent R | | I tried to use ndp -I to set the default IPv6 interface to re0, but what | that does is change the behavior of ping6 from EHOSTUNREACH to 100% | packet loss. After doing so, the gateway shows up in ndp: | | 2a01:4f8:110:4360::1 (incomplete) re0 permanent I | | ... and that's as far as I have come. I also tried to solicit router | information after setting net.inet6.ip6.accept_rtadv to 1, but there's | nothing like that on the wire. I have to do manual configuration. | | Lastly, the host's pf.conf is family-agnostic in almost all parts (and | the two remaining places have been triple-checked.) It's also creating | state for all outgoing traffic, so it really shouldn't interfere. | | What I haven't pursued, yet, is that Hetzner configured my network | wrong. This is hard to believe, though, as getting an IPv6 subnet from | them is 100% automated and a problem would probably affect all their | customers. | | I'm stumped. What have I missed? Any and all help is greatly appreciated! | | | Thanks, | | Moritz -- Todd Fries .. t...@fries.net _____________________________________________ | \ 1.636.410.0632 (voice) | Free Daemon Consulting, LLC \ 1.405.227.9094 (voice) | http://FreeDaemonConsulting.com \ 1.866.792.3418 (FAX) | 2525 NW Expy #525, Oklahoma City, OK 73112 \ sip:freedae...@ekiga.net | "..in support of free software solutions." \ sip:4052279...@ekiga.net \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ 37E7 D3EB 74D0 8D66 A68D B866 0326 204E 3F42 004A http://todd.fries.net/pgp.txt
