Dynv6 with teredo

miredo

#!/bin/bash
# This is a modified file /etc/network/if-up.d/miredo, replace it there.
#prerequisites: miredo autostart enabled, curl installed.

PATH=/sbin:/usr/sbin:/bin:/usr/bin

ipv6=$(ip a | grep -s -i -o '200[1-2]\:[a-f0-9\.:]*' | head -n 1)
hostname="yourhostnameat.dynv6.net"
token="yourtokenatdynv6.net"

　

set -e
# Don't bother to reload when lo is configured.

if [ "$IFACE" = lo ]; then

	exit 0

fi
# Only run from ifup.

if [ "$MODE" != start ]; then

	exit 0

fi

# Miredo only cares about (underlying) IPv4 interfaces.
#if [ "$ADDRFAM" != inet ]; then

#	exit 0

#fi

# Actually, due to this bug:
#  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=475188
# exclude IPX and IPv6 explicitly instead.

if [ "$ADDRFAM" = "ipx" ] || [ "$ADDRFAM" = "inet6" ]; then
ip -6 route add default dev teredo;
curl -m 30 "https://dynv6.com/api/update?hostname=$hostname.dynv6.net&ipv6=$ipv6&token=$token";
ip -6 route add default dev teredo;
ip link set dev teredo mtu 1400;
ping6 teredo.nic.cz -i 30 &>/dev/null &
	exit 0

fi

# Is /usr mounted?

if [ ! -e /usr/sbin/miredo ]; then

	exit 0

fi

# Is the miredo service running?

if ! invoke-rc.d --quiet miredo status >/dev/null; then

	exit 0

fi

invoke-rc.d --quiet miredo reload || true