Package: ifupdown
Version: 0.7.53.1
Severity: important
Tags: ipv6

On my debian unstable system, my /etc/network/interfaces looks like
this (addresses edited for privacy reasons) :
# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#allow-hotplug eth0
auto eth0

iface eth0 inet static
   address 192.168.x.y
   netmask 255.255.255.0
   network 192.168.x.0
   broadcast 192.168.x.255
   gateway 192.168.x.z
   pre-up /sbin/sysctl net.ipv6.conf.eth0.use_tempaddr=2
          
iface eth0 inet6 static
   address 2001:stuff::2
   netmask 64
   gateway 2001:stuff::z
   accept_ra 1
   autoconf 1
   privext 2
   up ip addr add fd9f:stuff::z/64 dev eth0

As you can see, I've got a local ULA prefix in my LAN and want to the
hosts ULA address using the "up" option.
However, this does not work. After booting, the host successfully got
its various IPv6 addresses, but the additional ULA address is missing.
Executing the ip addr add command manually in the shell works without
problems.

I've got no idea on how to work around this, imho the "up" option
using the "ip" command should "just work". Googling around did not
help, either. Most hits suggest exactly the method I'm using to add
additionall IPv6 addresses to an interface.

Regards,
C. Dominik Bódi

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.0.0-monster-1 (SMP w/8 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages ifupdown depends on:
ii  adduser      3.113+nmu3
ii  initscripts  2.88dsf-59
ii  iproute2     3.16.0-2
ii  libc6        2.19-18
ii  lsb-base     4.1+Debian13+nmu1

Versions of packages ifupdown recommends:
ii  isc-dhcp-client [dhcp-client]  4.3.1-6

Versions of packages ifupdown suggests:
ii  net-tools  1.60-26+b1
pn  ppp        <none>
pn  rdnssd     <none>

-- no debconf information


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