On Friday, December 2, 2016 13:39 CET, Leo Unglaub <l...@leo-unglaub.net> wrote:
> Hey, > > On 12/02/16 13:14, Reyk Floeter wrote: > > This is a link-local address, you have to specify the interface scope id: > > > > $ cat /etc/mygate > > 144.76.102.193 > > fe80::1%em0 > > thanks for the hint. I fixed this but that alone still does not help me > to send IPv6 data. > > > Hetzner also needs to know your link-local address on em0, > > do they use the fe80::921b:eff:fe8b:f34%em0 derived from the MAC (I think they do) > > or do you have to configure something like fe80::2%em0 on your side? > > Thats a good question. Sadly they dont specify that in the docs and are > also not willing to answer that via there support staff. > > All i could find in the documentation is the following line: > > > For IPv6 on dedicated servers and virtual servers from the CX line, the gateway is fe80::1. > > Since this is a link-local address, the explicit specification of the network adapter (usually eth0) is necessary: > > # ip route add default via fe80::1 dev eth0 > > There answer is that it works on Linux without config and OpenBSD is not > supported officially. > > > I just found out that since i changed my mygate up to your suggestion > that i now have to ping6 fe80::1%em0 first and then i am able to > connecto to other hosts via IPv6. But not before i pinged the > fe80::1%em0. WTF? > > Here are my rountes before the first ping to fe80::1 and then after the > ping. I have a 5.9 snapshot running @Hetzner, and ran into the very same problem. That same setup worked fine for years, but a couple of months ago, they did some change in their network infrastructure, and since then, I also have to ping6 first, to enable proper IPv6 connectivity. Since that 5.9 box is quite old, I haven't repored it, since the many networking changes since then. Sebastian > > > Routing tables (before ping) > > > > Internet6: > > Destination Gateway Flags Refs Use Mtu Prio Iface > > default fe80::1%em0 UGS 0 579 - 8 em0 > > ::/96 ::1 UGRS 0 0 32768 8 lo0 > > ::/104 ::1 UGRS 0 0 32768 8 lo0 > > ::1 ::1 UHl 14 14 32768 1 lo0 > > ::127.0.0.0/104 ::1 UGRS 0 0 32768 8 lo0 > > ::224.0.0.0/100 ::1 UGRS 0 0 32768 8 lo0 > > ::255.0.0.0/104 ::1 UGRS 0 0 32768 8 lo0 > > ::ffff:0.0.0.0/96 ::1 UGRS 0 0 32768 8 lo0 > > 2002::/24 ::1 UGRS 0 0 32768 8 lo0 > > 2002:7f00::/24 ::1 UGRS 0 0 32768 8 lo0 > > 2002:e000::/20 ::1 UGRS 0 0 32768 8 lo0 > > 2002:ff00::/24 ::1 UGRS 0 0 32768 8 lo0 > > 2a01:4f8:192:42d6::/64 2a01:4f8:192:42d6::10 UC 0 0 - 4 em0 > > 2a01:4f8:192:42d6::10 90:1b:0e:8b:0f:34 UHLl 0 18 - 1 em0 > > fe80::/10 ::1 UGRS 0 1 32768 8 lo0 > > fec0::/10 ::1 UGRS 0 0 32768 8 lo0 > > fe80::%em0/64 fe80::921b:eff:fe8b:f34%em0 UC 0 0 - 4 em0 > > fe80::921b:eff:fe8b:f34%em0 90:1b:0e:8b:0f:34 UHLl 0 0 - 1 em0 > > fe80::1%lo0 fe80::1%lo0 UHl 0 0 32768 1 lo0 > > ff01::/16 ::1 UGRS 0 1 32768 8 lo0 > > ff01::%em0/32 fe80::921b:eff:fe8b:f34%em0 Um 0 1 - 4 em0 > > ff01::%lo0/32 ::1 Um 0 1 32768 4 lo0 > > ff02::/16 ::1 UGRS 0 1 32768 8 lo0 > > ff02::%em0/32 fe80::921b:eff:fe8b:f34%em0 Um 0 1 - 4 em0 > > ff02::%lo0/32 ::1 Um 0 1 32768 4 lo0 > > > > Routing tables (after ping) > > > > Internet6: > > Destination Gateway Flags Refs Use Mtu Prio Iface > > default fe80::1%em0 UGS 0 581 - 8 em0 > > ::/96 ::1 UGRS 0 0 32768 8 lo0 > > ::/104 ::1 UGRS 0 0 32768 8 lo0 > > ::1 ::1 UHl 14 14 32768 1 lo0 > > ::127.0.0.0/104 ::1 UGRS 0 0 32768 8 lo0 > > ::224.0.0.0/100 ::1 UGRS 0 0 32768 8 lo0 > > ::255.0.0.0/104 ::1 UGRS 0 0 32768 8 lo0 > > ::ffff:0.0.0.0/96 ::1 UGRS 0 0 32768 8 lo0 > > 2002::/24 ::1 UGRS 0 0 32768 8 lo0 > > 2002:7f00::/24 ::1 UGRS 0 0 32768 8 lo0 > > 2002:e000::/20 ::1 UGRS 0 0 32768 8 lo0 > > 2002:ff00::/24 ::1 UGRS 0 0 32768 8 lo0 > > 2a01:4f8:192:42d6::/64 2a01:4f8:192:42d6::10 UC 0 0 - 4 em0 > > 2a01:4f8:192:42d6::10 90:1b:0e:8b:0f:34 UHLl 0 23 - 1 em0 > > fe80::/10 ::1 UGRS 0 1 32768 8 lo0 > > fec0::/10 ::1 UGRS 0 0 32768 8 lo0 > > fe80::%em0/64 fe80::921b:eff:fe8b:f34%em0 UC 1 0 - 4 em0 > > fe80::1%em0 0c:86:10:ed:35:58 UHLc 1 7 - 4 em0 > > fe80::921b:eff:fe8b:f34%em0 90:1b:0e:8b:0f:34 UHLl 0 8 - 1 em0 > > fe80::1%lo0 fe80::1%lo0 UHl 0 0 32768 1 lo0 > > ff01::/16 ::1 UGRS 0 1 32768 8 lo0 > > ff01::%em0/32 fe80::921b:eff:fe8b:f34%em0 Um 0 1 - 4 em0 > > ff01::%lo0/32 ::1 Um 0 1 32768 4 lo0 > > ff02::/16 ::1 UGRS 0 1 32768 8 lo0 > > ff02::%em0/32 fe80::921b:eff:fe8b:f34%em0 Um 0 2 - 4 em0 > > ff02::%lo0/32 ::1 Um 0 1 32768 4 lo0 > > Does someone of you understand this? > Greetings > Leo
