Public bug reported:
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.
** Affects: ifupdown (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1608054
Title:
IPv6 static addresses in multiple interfaces can't be configured thru
interfaces file
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