>From what I can gather online hetzner statically allocates a /64 per (v)server. I suspect they set a static route on the gateway to the link local address.
They know which link local address the (v)server will have since they know the mac address. However, with RFC 7217 the link local address also changes. -soii in hostname.if per the upgrade guide should fix this. On Tue, Apr 03, 2018 at 10:55:30AM +0200, Heiko Zimmermann wrote: > I tried sendbug. But I'm not sure that it worked. > --------------------------------------------------------------------------------------- > > I upgraded 6.2 to 6.3 > this way: https://www.openbsd.org/faq/upgrade63.html --> recommended > installing bsd.rd ... > > Since then I have no working IPv6 on Hetzner.de vServer CX10 and CX20. > > With the my 6.2 kvm backup all is working well. > > If there are questions to compare the outputs, I have a 6.3 (1 cpu CX10) > and a similar 6.2 (2 cpu CX20) working at hetzner. > > > > 1. First, check for patches and notes regarding the release. > done, did not found notes for relevant changes > > 2. Next, find out if there is a newer release available. > isnt, 6.3 final is the last > > 3. Finally, check for changes made between OpenBSD versions. > done this: > - rm -r /usr/share/man > - rm -r /usr/share/compile > - cd /usr/X11R6/lib > - rm libpthread-stubs.a \ > libpthread-stubs.so.2.0 \ > pkgconfig/pthread-stubs.pc > - upgrade via bsd.rd > - pkg_add -u > - sysmerge > > > > Here are the 6.3 (CX10) infos: > > # ifconfig -A > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 32768 > index 3 priority 0 llprio 3 > groups: lo > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 > inet 127.0.0.1 netmask 0xff000000 > vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 52:54:a2:02:46:8d > index 1 priority 0 llprio 3 > groups: egress > media: Ethernet autoselect > status: active > inet 172.31.1.100 netmask 0xffffff00 broadcast 172.31.1.255 > inet6 fe80::5054:a2ff:fe02:468d%vio0 prefixlen 64 scopeid 0x1 > inet6 2a01:4f8:c0c:4e33::2 prefixlen 64 > inet6 2a01:4f8:c0c:4e33::37 prefixlen 64 > enc0: flags=0<> > index 2 priority 0 llprio 3 > groups: enc > status: active > pflog0: flags=141<UP,RUNNING,PROMISC> mtu 33136 > index 4 priority 0 llprio 3 > groups: pflog > > ---------------------------------------------------------------------------- > # ping6 2a01:4f8:c17:16c7::2 > PING 2a01:4f8:c17:16c7::2 (2a01:4f8:c17:16c7::2): 56 data bytes > 64 bytes from 2a01:4f8:c17:16c7::2: icmp_seq=0 hlim=64 time=0.176 ms > ---------------------------------------------------------------------------- > #ping6 fe80::1%vio0 (fe80::1%vio0): 56 data bytes > 64 bytes from fe80::1%vio0: icmp_seq=0 hlim=64 time=0.650 ms > ---------------------------------------------------------------------------- > ping6 ipv6.google.com > PING ipv6.l.google.com (2a00:1450:4001:81a::200e): 56 data bytes > > no external ipv6 working > ---------------------------------------------------------------------------- > # route -n show > > Routing tables > > Internet: > Destination Gateway Flags Refs Use Mtu Prio > Iface > default 172.31.1.1 UGS 11 108062 - 8 > vio0 > 224/4 127.0.0.1 URS 0 0 32768 8 > lo0 > 127/8 127.0.0.1 UGRS 0 0 32768 8 > lo0 > 127.0.0.1 127.0.0.1 UHhl 3 2218 32768 1 > lo0 > 172.31.1/24 172.31.1.100 UCn 1 0 - 4 > vio0 > 172.31.1.1 d2:74:7f:6e:37:e3 UHLch 1 909 - 3 > vio0 > 172.31.1.100 52:54:a2:01:be:95 UHLl 0 2623 - 1 > vio0 > 172.31.1.255 172.31.1.100 UHb 0 0 - 1 > vio0 > 192.168.5/24 192.168.5.2 UGS 1 30045 - 8 > tun0 > 192.168.5.1 192.168.5.1 UHl 0 666 - 1 > tun0 > 192.168.5.2 192.168.5.1 UHh 1 94 - 8 > tun0 > > Internet6: > Destination Gateway Flags > Refs Use Mtu Prio Iface > default fe80::1%vio0 UGS > 0 1432 - 8 vio0 > ::/96 ::1 UGRS > 0 0 32768 8 lo0 > ::1 ::1 UHhl > 10 20 32768 1 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:c17:16c7::/64 2a01:4f8:c17:16c7::2 UCn > 0 0 - 4 vio0 > 2a01:4f8:c17:16c7::2 52:54:a2:01:be:95 UHLl > 0 1573 - 1 vio0 > fe80::/10 ::1 UGRS > 0 1 32768 8 lo0 > fec0::/10 ::1 UGRS > 0 0 32768 8 lo0 > fe80::%vio0/64 fe80::1379:1a31:b33f:8b70%vio0 UCn > 1 0 - 4 vio0 > fe80::1%vio0 d2:74:7f:6e:37:e3 UHLch > 1 808 - 3 vio0 > fe80::1379:1a31:b33f:8b70%vio0 52:54:a2:01:be:95 UHLl > 0 202 - 1 vio0 > fe80::1%lo0 fe80::1%lo0 UHl > 0 0 32768 1 lo0 > ff01::/16 ::1 UGRS > 0 1 32768 8 lo0 > ff01::%vio0/32 fe80::1379:1a31:b33f:8b70%vio0 Um > 0 1 - 4 vio0 > ff01::%lo0/32 ::1 Um > 0 1 32768 4 lo0 > ff02::/16 ::1 UGRS > 0 1 32768 8 lo0 > ff02::%vio0/32 fe80::1379:1a31:b33f:8b70%vio0 Um > 0 2 - 4 vio0 > ff02::%lo0/32 ::1 Um > 0 1 32768 4 lo0 > ---------------------------------------------------------------------------- > ---------------------------------------------------------------------------- > # dmesg > OpenBSD 6.3 (GENERIC) #100: Sat Mar 24 14:17:45 MDT 2018 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC > real mem = 1056817152 (1007MB) > avail mem = 1017876480 (970MB) > mpath0 at root > scsibus0 at mpath0: 256 targets > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xf68c0 (9 entries) > bios0: vendor SeaBIOS version "1.10.2" date 04/01/2014 > bios0: Hetzner vServer > acpi0 at bios0: rev 0 > acpi0: sleep states S5 > acpi0: tables DSDT FACP APIC HPET > acpi0: wakeup devices > acpitimer0 at acpi0: 3579545 Hz, 24 bits > acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat > cpu0 at mainbus0: apid 0 (boot processor) > cpu0: Intel Xeon Processor (Sandy Bridge), 2100.28 MHz > cpu0: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,HV,NXE,RDTSCP,LONG,LAHF,ARAT,MELTDOWN > cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB > 64b/line 16-way L2 cache > cpu0: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped > cpu0: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped > cpu0: smt 0, core 0, package 0 > mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges > cpu0: apic clock running at 1000MHz > ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins > acpihpet0 at acpi0: 100000000 Hz > acpiprt0 at acpi0: bus 0 (PCI0) > acpicpu0 at acpi0: C1(@1 halt!) > "ACPI0006" at acpi0 not configured > "PNP0A06" at acpi0 not configured > "PNP0A06" at acpi0 not configured > "PNP0A06" at acpi0 not configured > "QEMU0002" at acpi0 not configured > "ACPI0010" at acpi0 not configured > pvbus0 at mainbus0: KVM > pci0 at mainbus0 bus 0 > pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02 > pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00 > pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, > channel 0 wired to compatibility, channel 1 wired to compatibility > pciide0: channel 0 disabled (no drives) > atapiscsi0 at pciide0 channel 1 drive 0 > scsibus1 at atapiscsi0: 2 targets > cd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 2.5+> ATAPI 5/cdrom > removable > cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 > uhci0 at pci0 dev 1 function 2 "Intel 82371SB USB" rev 0x01: apic 0 int 11 > piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: apic 0 > int 9 > iic0 at piixpm0 > vga1 at pci0 dev 2 function 0 "Bochs VGA" rev 0x02 > wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) > wsdisplay0: screen 1-5 added (80x25, vt100 emulation) > virtio0 at pci0 dev 3 function 0 "Qumranet Virtio Network" rev 0x00 > vio0 at virtio0: address 52:54:a2:01:be:95 > virtio0: msix shared > virtio1 at pci0 dev 4 function 0 "Qumranet Virtio SCSI" rev 0x00 > vioscsi0 at virtio1: qsize 128 > scsibus2 at vioscsi0: 255 targets > sd0 at scsibus2 targ 0 lun 0: <QEMU, QEMU HARDDISK, 2.5+> SCSI3 0/direct > fixed > sd0: 24414MB, 512 bytes/sector, 49999872 sectors, thin > virtio1: msix shared > virtio2 at pci0 dev 5 function 0 "Qumranet Virtio Memory" rev 0x00 > viomb0 at virtio2 > virtio2: apic 0 int 10 > isa0 at pcib0 > isadma0 at isa0 > fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 > com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo > pckbc0 at isa0 port 0x60/5 irq 1 irq 12 > pckbd0 at pckbc0 (kbd slot) > wskbd0 at pckbd0: console keyboard, using wsdisplay0 > pms0 at pckbc0 (aux slot) > wsmouse0 at pms0 mux 0 > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > usb0 at uhci0: USB revision 1.0 > uhub0 at usb0 configuration 1 interface 0 "Intel UHCI root hub" rev > 1.00/1.00 addr 1 > uhidev0 at uhub0 port 1 configuration 1 interface 0 "QEMU QEMU USB > Tablet" rev 2.00/0.00 addr 2 > uhidev0: iclass 3/0 > ums0 at uhidev0: 3 buttons, Z dir > wsmouse1 at ums0 mux 0 > vscsi0 at root > scsibus3 at vscsi0: 256 targets > softraid0 at root > scsibus4 at softraid0: 256 targets > sd1 at scsibus4 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed > sd1: 24410MB, 512 bytes/sector, 49993688 sectors > root on sd1a (dee98de5a6113431.a) swap on sd1b dump on sd1b > fd0 at fdc0 drive 1: density unknown > ---------------------------------------------------------------------------- > > Regards, > Heiko > -- I'm not entirely sure you are real.
