[Bug 1608054] Re: IPv6 static addresses in multiple interfaces can't be configured thru interfaces file

[Dimitri John Ledkov]

Sorry, there was no response to questions above? Do you have persistent
net-device names udev rules on the system? (to correctly fix, the ethX
names to where you expect them)

Also can you please attach journal logs of the ifup at .service for the
missing/broken interfaces.

Marking bug report incomplete in the mean time.

Note there are too many dns-servers specified:
 dns-nameservers 10.10.10.3 80.58.61.250 80.58.61.254 8.8.8.8 8.8.4.4 2001:470:1f09:495::3 2001:470:20::2
All of them will not be supported.

** Changed in: ifupdown (Ubuntu)
       Status: Confirmed => Incomplete

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Title:
  IPv6 static addresses in multiple interfaces can't be configured thru
  interfaces file

Status in ifupdown package in Ubuntu:
  Incomplete

Bug description:
  Just installed 16.04 over a 14 version. I discovered that the actual
  interfaces file is not working correctly. Tried many choices, even
  using pre-up sleep 10 before configuring the IPv6 manual addresses,
  but didn't worked. This is the example file:

  auto lo
  iface lo inet loopback

  allow-hotplug eth0
  iface eth0 inet static
   mtu 9000
   address 172.16.0.7
   netmask 255.255.255.0
   dns-nameservers 10.10.10.3 80.58.61.250 80.58.61.254 8.8.8.8 8.8.4.4 2001:470:1f09:495::3 2001:470:20::2

  iface eth0 inet6 auto

  allow-hotplug eth1
  iface eth1 inet static
   mtu 9000
   address 10.10.10.7
   netmask 255.255.255.0

  iface eth1 inet6 static
   autoconf 0
   accept_ra 0
   address 2001:470:1f09:495::7
   netmask 64

  allow-hotplug eth2
  iface eth2 inet static
   mtu 9000
   address 10.10.9.7
   netmask 255.255.255.0
   gateway 10.10.9.1

  iface eth2 inet6 static
   autoconf 0
   accept_ra 0
   address 2001:470:1f1d:275::7
   netmask 64
   gateway fe80::1

  As you can see, both, eth1 and eth2 have manual/static IPv6 addresses.
  Each one is in a different router. Only eth2 is the default gateway
  (eth1 is usen only for internal communication with another LAN).
  However, after reboot, the ifconfig shows:

  eth0      Link encap:Ethernet  direcciónHW 00:0c:29:64:c6:32  
            Direc. inet:172.16.0.7  Difus.:172.16.0.255  Másc:255.255.255.0
            Dirección inet6: fe80::20c:29ff:fe64:c632/64 Alcance:Enlace
            ACTIVO DIFUSIÓN FUNCIONANDO MULTICAST  MTU:9000  Métrica:1
            Paquetes RX:17 errores:0 perdidos:0 overruns:0 frame:0
            Paquetes TX:32 errores:0 perdidos:0 overruns:0 carrier:0
            colisiones:0 long.colaTX:1000 
            Bytes RX:1500 (1.5 KB)  TX bytes:3805 (3.8 KB)

  eth1      Link encap:Ethernet  direcciónHW 00:0c:29:64:c6:3c  
            Direc. inet:10.10.10.7  Difus.:10.10.10.255  Másc:255.255.255.0
            Dirección inet6: 2001:470:1f09:495::7/64 Alcance:Global
            Dirección inet6: fe80::20c:29ff:fe64:c63c/64 Alcance:Enlace
            ACTIVO DIFUSIÓN FUNCIONANDO MULTICAST  MTU:9000  Métrica:1
            Paquetes RX:291 errores:0 perdidos:2 overruns:0 frame:0
            Paquetes TX:144 errores:0 perdidos:0 overruns:0 carrier:0
            colisiones:0 long.colaTX:1000 
            Bytes RX:34692 (34.6 KB)  TX bytes:16360 (16.3 KB)

  eth2      Link encap:Ethernet  direcciónHW 00:0c:29:64:c6:46  
            Direc. inet:10.10.9.7  Difus.:10.10.9.255  Másc:255.255.255.0
            Dirección inet6: fe80::20c:29ff:fe64:c646/64 Alcance:Enlace
            ACTIVO DIFUSIÓN FUNCIONANDO MULTICAST  MTU:9000  Métrica:1
            Paquetes RX:1281 errores:0 perdidos:0 overruns:0 frame:0
            Paquetes TX:755 errores:0 perdidos:0 overruns:0 carrier:0
            colisiones:0 long.colaTX:1000 
            Bytes RX:105008 (105.0 KB)  TX bytes:1554705 (1.5 MB)

  lo        Link encap:Bucle local  
            Direc. inet:127.0.0.1  Másc:255.0.0.0
            Dirección inet6: ::1/128 Alcance:Anfitrión
            ACTIVO BUCLE FUNCIONANDO  MTU:65536  Métrica:1
            Paquetes RX:818 errores:0 perdidos:0 overruns:0 frame:0
            Paquetes TX:818 errores:0 perdidos:0 overruns:0 carrier:0
            colisiones:0 long.colaTX:1 
            Bytes RX:136866 (136.8 KB)  TX bytes:136866 (136.8 KB)

  All what I tried fails. If I issue a manual:
  ip -6 addr add 2001:470:1f1d:275::7/64 dev eth2

  it works.

  I've noticed not sure if this is relevant, that the file
  /etc/network/run/ifstate.eth2 is empty, and /etc/network/run/ifstate
  only contains the other interfaces, but not eth2:

  eth1=eth1
  eth0=eth0
  lo=lo

  Before the upgrade it contained all the interfaces.

  I've used GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0", to keep
  the original interface names, not sure if that's relevant, just in
  case.

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