tunnelbroker.net automatic tunnel IP update and tunnel setup (on Mac OS X)

tunnelbroker-net.sh

#!/bin/bash

#### This script is published by Philipp Klaus <philipp.l.klaus@web.de>
#### on <http://blog.philippklaus.de/2011/05/ipv6-6in4-tunnel-via-hurricane-electric-tunnelbroker-net-automatic-ip-update-on-mac-os-x/>
#### It is originally by freese60 and modified by limemonkey.
#### Found on <http://www.tunnelbroker.net/forums/index.php?topic=287.0>

### Uncomment this line to debug the script:
#set -x

#######################################################################
#### Config start
### 
### This configuration file must set the following variables:
### MYIF, DEVNAME, LOCAL_IPV4, EXTERNAL_IPV4,
### HEUSER, HEPASS, HETUNNEL,
### HESERVER4END, HESERVER6END and HECLIENT6END

#MYIF="en1" # en1 = Airport, en0 = Ethernet
MYIF=`netstat -f inet -r | grep default | tr -s ' ' | cut -d ' ' -f 6` # autodetect

DEVNAME='gif0'

# LOCAL_IPV4=`ifconfig #MYIF | grep 'inet ' | tr -s ' ' | cut -d ' ' -f 2` # if you need to use your public ip address, use LOCAL_IP=$EXTERNAL_IPV4 instead
LOCAL_IPV4=`ifconfig $MYIF |grep -E 'inet.[0-9]' | grep -v '127.0.0.1' | awk '{ print $2}'`
#EXTERNAL_IPV4=`curl -s "http://www.networksecuritytoolkit.org/nst/cgi-bin/ip.cgi"`
EXTERNAL_IPV4=`curl -s "http://v4.ipv6-test.com/api/myip.php"`
# one more site, to get your external IPv4 IP: http://v4.ipv6-test.com/api/myip.php
#EXTERNAL_IPV4='AUTO' # ← If you don't want to get use www.networksecuritytoolkit.org but tunnelbroker.net, then set it to AUTO
HEUSER='dn6483m67d411ba0.26906527' # hash from the website, "UserID"
HEPASS='32f325019357278d1da3ba06887fa6f1' # hash: echo -n MyPass|md5
HETUNNEL=12056 # from the website, "Global Tunnel ID"

### other settings from the website (the tunnel settings):
HESERVER4END='216.66.80.30'
HESERVER6END=2001:470:1f0a:3333::1
HECLIENT6END=2001:470:1f0a:3333::2

HE64PREFIX=2001:470:1f0b:3333::
MYCUSTOMADDRESS=${HE64PREFIX}1:1

#######################################################################
####  Starting the actual script

echo "Please enter your user account password. It is needed to set up the IPv6 tunnel."
sudo echo "Gained superuser permissions"
if [ $? == 1 ]; then echo "Sorry! You need to provide your password in order to set up the tunnel."; exit 1; fi

echo "Remove previous tunnel (ignore any errors)"
sudo ifconfig $DEVNAME down
sudo ifconfig $DEVNAME inet6 $MYCUSTOMADDRESS prefixlen 128 delete
sudo ifconfig $DEVNAME inet6 $HECLIENT6END $HESERVER6END prefixlen 128 delete
sudo route delete -inet6 default -interface $DEVNAME
sudo ifconfig $DEVNAME deletetunnel

echo "Removed the previous tunnel. Will continue to set up the tunnel in 5 seconds..."
for i in {5..1}; do echo "$i"; sleep 1; done

echo "Updating your IPv4 tunnel endpoint setting on the Hurricane Electric Website."
# And instead of determining the external IPv4 address on your own, you can also set the param ip to AUTO.
curl -k -s "https://ipv4.tunnelbroker.net/ipv4_end.php?ip=$EXTERNAL_IPV4&pass=$HEPASS&apikey=$HEUSER&tid=$HETUNNEL"
# One more API of the tunnelbroker.net site is: https://username:password@tunnelbroker.net/tunnelInfo.php[?tid=tunnel_id] which returns an XML output

sleep 1

echo "Setting up the tunnel with the new settings now ."
sudo ifconfig $DEVNAME create
sudo ifconfig $DEVNAME tunnel $LOCAL_IPV4 $HESERVER4END
sudo ifconfig $DEVNAME inet6 $MYCUSTOMADDRESS prefixlen 128
sudo ifconfig $DEVNAME inet6 $HECLIENT6END $HESERVER6END prefixlen 128
sudo route -n add -inet6 default $HECLIENT6END


# We now provide the user with information if the tunnel has ben set up successfully:
sleep 1
echo "The external IPv6 is now set to `curl -s 'http://v6.ipv6-test.com/api/myip.php'`."
echo "The external IP of your default connection is now set to `curl -s 'http://v4v6.ipv6-test.com/api/myip.php'`."