=== IPv6 forwarding ===

- Add "net.ipv6.conf.all.forwarding=1" to /etc/sysctl.conf


=== PPP configuration ===

- Add "ipv6 ," to /etc/ppp/options
- Add a default route
  ip -6 ro add default dev $PPP_IFACE
- Start the Wide DHCPv6 client


=== /etc/wide-dhcpv6/dhcp6c.conf ===

interface ppp0 {
  send ia-pd 0;
  script "/etc/wide-dhcpv6/dhcp6c-script";
};

id-assoc pd {
  prefix-interface eth0 {
    sla-id 0;
    sla-len 4;
  };
};


=== /etc/wide-dhcpv6/dhcp6c-script ===

#!/bin/sh
# dhcp6c-script for Debian/Ubuntu. Jérémie Corbier, April, 2006.
# resolvconf support by Mattias Guns, May 2006.

RESOLVCONF="/sbin/resolvconf"

[ -f /etc/default/wide-dhcpv6-client ] && . /etc/default/wide-dhcpv6-client

if [ -n "$new_domain_name" -o -n "$new_domain_name_servers" ]; then
    new_resolv_conf=/etc/resolv.conf.dhcp6c-new
    rm -f $new_resolv_conf
    if [ -n "$new_domain_name" ]; then
        echo search $new_domain_name >> $new_resolv_conf
    fi
    if [ -n "$new_domain_name_servers" ]; then
        for nameserver in $new_domain_name_servers; do
            echo nameserver $nameserver >> $new_resolv_conf
        done
    fi

    # Use resolvconf if available
    if [ -h "/etc/resolv.conf" -a -x "$RESOLVCONF" ]; then
        for IFACE in $INTERFACES; do
            cat $new_resolv_conf | $RESOLVCONF -a $IFACE
        done
    else
        # To preserve IPv4 informations...
        cat /etc/resolv.conf >> $new_resolv_conf
        chown --reference=/etc/resolv.conf $new_resolv_conf
        chmod --reference=/etc/resolv.conf $new_resolv_conf
        mv -f $new_resolv_conf /etc/resolv.conf
    fi
fi

sleep 10

/etc/init.d/radvd restart

exit 0


=== /etc/radvd.conf ===

interface eth0 {
        AdvSendAdvert on;
        prefix ::/64 {
                AdvOnLink on;
                AdvAutonomous on;
        };
};