I wrote this script and it might be handy for others too. have fun. Robert Nagtegaal robert@masikh.vslcatena.nl #!/bin/sh # # Copyright (C)2003 Robert Nagtegaal # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # # last modification: 08-10-2003 # added tunnel up check. # modification: 06-10-2003 # wrote this script from scratch # # To-Do: # # Make it possible to administer multiple tunnels. # Make a gentoo version. # ### # Please fill in the following variable # ### BROKER="AMS-IX"# Name of your broker (cosmetic purpose) Loc_IPv4="132.229.1.1" # Local IPv4 address. PoP_IPv4="213.197.27.252" # PoP's IPv4 address. Loc_IPv6="2001:838::2/64" # Local IPv6 endpoint address. PoP_IPv6="2001:838::1" # PoP's IPv6 endpoint address. Not_local="2000::/3"# Ipv6 address ~= ipv4 0.0.0.0 Interface_local="sit0"# which sit devices to use Interface_remote="sit1"# MTU="1280"# Tunnel's MTU size IFCONFIG="/sbin/ifconfig"# Binary locations ROUTE="/sbin/route"# IPTUNNEL="/sbin/iptunnel"# ############################################################################### # # DO NOT CHANGE ANYTHING BEYOND HERE !!! # ### case "$1" in start) # Test if we really got IPv6 support in the kernel. If not present, # this script tries to load the kernel module else it bails out with a # warning. # ### if ! [ -f /proc/net/if_inet6 ] then echo "ERROR: No IPv6 support in you kernel. Trying to load kernel module." 1>&2; modprobe ipv6; fi if ! [ -f /proc/net/if_inet6 ] then echo "ERROR: No IPv6 support. Sorry I can't continue." 1>&2; exit 1; fi # Test if tunnel is not already up # ### up=`(set \`"$IFCONFIG" | grep "$Interface_remote"\`;echo $1)` 1>&2 if [ "$up" = "$Interface_remote" ] then echo "ERROR: Tunnel already up using: $Interface_remote" 1>&2; exit 1; fi # Setting up the tunnel. # ### $IFCONFIG sit0 tunnel ::$PoP_IPv4 mtu 1280 up && \ $IFCONFIG sit1 add $Loc_IPv6 mtu 1280 up && \ $ROUTE -A inet6 add $Not_local gw $PoP_IPv6 dev sit1 && \ echo "Tunnel to $BROKER establised." || \ { echo "ERROR: Failed to establise a tunnel to $BROKER." 1>&2; $0 stop; exit 1; } ;; stop) # Bringing the tunnel down. # ### $IFCONFIG sit1 down $IFCONFIG sit0 down && \ echo "IPv6 tunnel deleted." || \ { echo "ERROR: Failed to bring IPv6 tunnel with $Interface_remote down." 1>&2; exit 1; } ;; restart|reload) $0 stop && $0 start ;; *) echo "GNU (C)2003 Robert Nagtegaal.";echo echo "Usage: $0 {start|stop|restart|reload}" exit 1 esac exit 0