On Sat, Jul 15, 2017 at 07:31:29PM +0200, Rainer Dorsch wrote: > > I added a IPv6 support to a KVM virtualized Jessie system following the > > instructions by the hoster > > > > https://www.netcup-wiki.de/wiki/Zus > > %c3%a4tzliche_IP_Adresse_konfigurieren#IPv6%7C
That should still work, but I see it uses the ancient interface alias
notation (like eth0:1). The example given there can be rewritten to a
more modern form:
allow-hotplug eth0
iface eth0 inet static
address 37.100.195.4/22
gateway 37.100.192.1
iface eth0 inet static
address 46.38.240.15
iface eth0 inet6 static
address 2a03:4000:2:11c5::1/64
gateway fe80::1
Note that the netmasks and broadcast addresses are gone, and you can
have multiple inet stanzas for the same interface.
> > root@netcup:~# /sbin/route -6
> > Kernel IPv6 routing table
> > Destination Next Hop Flag Met Ref
> > Use If
[...]
> > ::/0 fe80::1 UGDAe 1024 3 0
> > eth0
The flags field contains the letter 'e', which means that this route
expires. This is added by the kernel, most likely because the gateway
address is not inside 2a03:4000:2:11c5::/64, and will cause it to remove
the route after a while. This looks like the same issue reported in
Debian bug #378506, which is fixed in stretch.
The workaround is to remove the gateway fe80::1 statement, but to add
this instead:
up ip -6 route add default via fe80::1 dev $IFACE onlink
--
Met vriendelijke groet / with kind regards,
Guus Sliepen <g...@debian.org>
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