[Linux and IPv6 HOWTO] Persistent configuration with Debian

[Stephane Bortzmeyer <bortzmeyer@nic.fr>]

In
<URL:http://www.bieringer.de/linux/IPv6/Linux+IPv6-HOWTO/x1924.html>,
you write:

> I still don't have any information whether a persistent IPv6
> configuration can be stored somewhere.

If you just mean "configuring a static IPv6 address with the Debian
operating system", the answer is:

1) Be sure that IPv6 is loaded, either because it is compiled into the
kernel or because the module is loaded. For the latest, three solutions,
adding it to /etc/modules, using the pre-up trick shown later or using
kmod (not detailed here).

2) Configure your interface. Here we assume eth0 and RIR address
(2001::). Edit /etc/network/interfaces :

iface eth0 inet6 static
        pre-up modprobe ipv6
        address 2001:660:3003:3::1:1
        # To suppress completely autoconfiguration:
        # up echo 0 > /proc/sys/net/ipv6/conf/all/autoconf
        netmask 64
        # The router is autoconfigured and has no fixed address.
        # It is magically
	# found. (/proc/sys/net/ipv6/conf/all/accept_ra). Otherwise:
        #gateway 2001:660:111:3:2e0:29ff:fe62:3a89

And you reboot or you just 'ifup --force eth0' and you have your
static address.