IPv6 setup Hurricane Electric Tunnel Broker

From DD-WRT Wiki

(Difference between revisions)
Jump to: navigation, search
Revision as of 07:27, 22 February 2011 (edit)
Mofunzone (Talk | contribs)
(Install Steps)
← Previous diff
Current revision (18:44, 18 March 2018) (edit) (undo)
Ian5142 (Talk | contribs)
(Added IPv6 Category.)
 
(16 intermediate revisions not shown.)
Line 16: Line 16:
You should have an account and tunnel created on the website. This post will not cover that. Install steps are below the script. This script will only work with /64 tunnels/addresses. Don't use it if you're using /48 You should have an account and tunnel created on the website. This post will not cover that. Install steps are below the script. This script will only work with /64 tunnels/addresses. Don't use it if you're using /48
-###############################################################################+==Script==
-# v1.1 Jan 23, 2011 DAVE_SPAM VERSION (original by ac1115) + <nowiki>
-# HURRICANE ELECTRIC IPv6 TUNNEL SCRIPT +#v1.4 Feb 29, 2012
-#****************************************************************************** +#***************************
-# USE THE LATEST VERSION OF DD-WRT, ie 15962 +#Settings start here
-# see: ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/12-24-10-r15962/ +#***************************
-# tested with DD-WRT 15962 voip version on WRT610nv2 with PPPoE WAN connection +
-# +
-# +
-# +
-#****************************************************************************** +
-#Settings start here +
-#****************************************************************************** +
-#### basic connection settings FROM http://www.tunnelbroker.net/tunnel_detail.php?tunnelid=NNNNNN +#basic connection settings
-SERVER_IP4_ADDR="enter ip here" +SERVER_IP4_ADDR="enter ip here"
-CLIENT_IPV6_ADDR="enter ip here" +CLIENT_IPV6_ADDR="enter ip here"
-ROUTED_64_ADDR="enter ip here" +ROUTED_64_ADDR="enter ip here"
-#### account info to auto update endpoint FROM http://www.tunnelbroker.net/main.php +#account info to auto update endpoint
-USERID="enter the long hex code - NOT text username" +USERID="enter your hex user id. NOT text username"
-PASSWD="plain text password" +PASSWD="your plain text password"
-TUNNELID="your numeric GLOBAL tunnel id" +TUNNELID="your numeric tunnel id"
- +
-#####Optional/Advanced Settings###### +
-#logging settings (set to /dev/null for no logging) +
-STARTUP_SCRIPT_LOG_FILE="/tmp/ipv6.log" +
-CRON_STATUS_LOG_FILE="/tmp/ipv6_lastHEUpdate.log" +
-#Generated files paths +#####Optional/Advanced Settings######
-CRON_JOB_FILE="/tmp/ipv6_reload.sh" +
-SCRIPT_FILE="/tmp/ipv6_run.sh" +
-RADVD_CONFIG="/tmp/radvd.conf" +
-#****************************************************************************** +#IPv6 OpenDNS IPv6 Resolver
-#Settings end here +ENABLE_OPENDNS_IPV6_DNS=1
-#****************************************************************************** +
-echo "HE IPv6 Script started" > $STARTUP_SCRIPT_LOG_FILE +#HE's endpoint verificiation server ip to add to whitelist
-date >> $STARTUP_SCRIPT_LOG_FILE +HE_VERIFY_SERVER_IP="66.220.2.74"
-insmod ipv6 +#WAN IP Source settings
-#maybe needs to be incresed for slow boxes. +#Set below to 1 to use internal NVRAM wan address instead of fetching it from a site
-sleep 1.5 +USE_NVRAM_WAN_ADDR_INSTEAD=1
 +WAN_IP_SOURCE_ADDR="http://automation.whatismyip.com/n09230945.asp"
-#get a hash of the plaintext password +#logging settings (set to /dev/null for no logging)
-MD5PASSWD=`echo -n $PASSWD | md5sum | sed -e 's/ -//g'` +STARTUP_SCRIPT_LOG_FILE="/tmp/ipv6.log"
-echo "" >> $STARTUP_SCRIPT_LOG_FILE +CRON_STATUS_LOG_FILE="/tmp/lastHEUpdate.log"
-#cut out the "/64" if user typed it in +#Enable this to generate a .wanup script to automatically update local tunnel endpoint address on wan change
-ROUTED_64_ADDR=`echo $ROUTED_64_ADDR|cut -f1 -d/` +ENABLE_WANUP_SCRIPT=1
-SERVER_IP4_ADDR=`echo $SERVER_IP4_ADDR|cut -f1 -d/` +WANUP_SCRIPT_FILE_PATH="/tmp/etc/config/tunnelUpdate.wanup"
-CLIENT_IPV6_ADDR=`echo $CLIENT_IPV6_ADDR|cut -f1 -d/` +
-echo "User added addresses cleaned/checked" >> $STARTUP_SCRIPT_LOG_FILE +
-#do HE update +#Generated files paths
-echo "Do HE Update" >> $STARTUP_SCRIPT_LOG_FILE +CRON_JOB_FILE="/tmp/report.sh"
-wget -q "http://ipv4.tunnelbroker.net/ipv4_end.php?ipv4b=AUTO&pass=$MD5PASSWD&user_id=$USERID&tunnel_id=$TUNNELID" -O - >> $STARTUP_SCRIPT_LOG_FILE +RADVD_CONFIG="/tmp/radvd.conf"
-#get wan ip for our own use from internal variable +#***************************
-WANIP=$(nvram get wan_ipaddr); +#Settings end here
-echo " External IP detected as:" $WANIP >> $STARTUP_SCRIPT_LOG_FILE +#***************************
-echo " External IP detected as:" $WANIP +
-if [ -n $WANIP ] +echo "" >> $STARTUP_SCRIPT_LOG_FILE
-then +echo "HE IPv6 Script started" >> $STARTUP_SCRIPT_LOG_FILE
-echo "configuring tunnel" >> $STARTUP_SCRIPT_LOG_FILE +
-echo "configuring tunnel" +
-### create/update tunnel code +insmod ipv6
-#fixes ioctl: No buffer space available ERROR +sleep 10
-ip tunnel del he-ipv6 +
-# The following commands are from HE's website +
-ip tunnel add he-ipv6 mode sit remote $SERVER_IP4_ADDR local $WANIP ttl 255 +
-ip link set he-ipv6 up +
-ip addr add $CLIENT_IPV6_ADDR/64 dev he-ipv6 +
-ip route add ::/0 dev he-ipv6 +
-ip -f inet6 addr +
-TEMP_ADDR=`echo $ROUTED_64_ADDR'1'` +
-# These commands aren't on HE's website, but they're necessary for the tunnel to work +
-ip -6 addr add $TEMP_ADDR/64 dev br0 +
-ip route add 2000::/3 dev he-ipv6 +
-#Enable IPv6 forwarding +#get a hash of the plaintext password
-echo 1 > /proc/sys/net/ipv6/conf/all/forwarding +MD5PASSWD=`echo -n $PASSWD | md5sum | sed -e 's/ -//g'`
 +echo `date` >> $STARTUP_SCRIPT_LOG_FILE
-# make sure to accept proto-41 +#cut out the "/64" if user typed it in
-iptables -I INPUT 2 -p ipv6 -i vlan1 -j ACCEPT +ROUTED_64_ADDR=`echo $ROUTED_64_ADDR|cut -f1 -d/`
 +SERVER_IP4_ADDR=`echo $SERVER_IP4_ADDR|cut -f1 -d/`
 +CLIENT_IPV6_ADDR=`echo $CLIENT_IPV6_ADDR|cut -f1 -d/`
 +echo "User added addresses cleaned/checked" >> $STARTUP_SCRIPT_LOG_FILE
-#make sure to not NAT proto-41 +#get wan ip for our own use
-iptables -t nat -A POSTROUTING --proto ! 41 -o eth0 -j MASQUERADE +if [ $USE_NVRAM_WAN_ADDR_INSTEAD -eq 1 ]
-echo "creating radvd conf" >> $STARTUP_SCRIPT_LOG_FILE +then
 + echo "Fetching WAN IP from NVRAM" >> $STARTUP_SCRIPT_LOG_FILE
 + WANIP=$(nvram get wan_ipaddr);
 +else
 + echo "Fetching WAN IP from External Site: " $WAN_IP_SOURCE_ADDR >> $STARTUP_SCRIPT_LOG_FILE
 + WANIP=`wget $WAN_IP_SOURCE_ADDR -O - 2>/dev/null`
 +fi
-#creating radvd.conf +echo "External IP detected as:" $WANIP >> $STARTUP_SCRIPT_LOG_FILE
-echo "#generated by startup script" > $RADVD_CONFIG +if [ -n $WANIP ]
-echo "interface br0 {" >> $RADVD_CONFIG +then
-echo "AdvSendAdvert on;" >> $RADVD_CONFIG +echo "configuring tunnel" >> $STARTUP_SCRIPT_LOG_FILE
-echo "prefix "$ROUTED_64_ADDR"/64 {" >> $RADVD_CONFIG +
-echo "AdvOnLink on;" >> $RADVD_CONFIG +
-echo "AdvAutonomous on;" >> $RADVD_CONFIG +
-echo "AdvRouterAddr on;" >> $RADVD_CONFIG +
-echo "};" >> $RADVD_CONFIG +
-echo "};" >> $RADVD_CONFIG +
-#kill old versions of radvd  
-echo "killing any old versions of radvd" >> $STARTUP_SCRIPT_LOG_FILE  
-kill -s 9 $(cat /var/run/radvd.pid)  
-sleep 1  
-echo "starting radvd" >> $STARTUP_SCRIPT_LOG_FILE +#update HE endpoint
-radvd -C $RADVD_CONFIG & +#need to alllow wan ping or HE will not validate new endpoint
 +iptables -I INPUT 2 -s $HE_VERIFY_SERVER_IP -p icmp -j ACCEPT
 +echo -e wget -q "http://ipv4.tunnelbroker.net/ipv4_end.php?ip=$WANIP&pass=$MD5PASSWD&apikey=$USERID&tid=$TUNNELID" -O $CRON_STATUS_LOG_FILE >>$CRON_JOB_FILE
 +chmod +x $CRON_JOB_FILE
 +echo "Cron script created, sending endpoint update request to HE" >> $STARTUP_SCRIPT_LOG_FILE
 +etime=`date +%s`
 +wget -q "http://ipv4.tunnelbroker.net/ipv4_end.php?ip=$WANIP&pass=$MD5PASSWD&apikey=$USERID&tid=$TUNNELID" -O /tmp/wget.tmp.$etime
 +cat /tmp/wget.tmp.$etime >> $STARTUP_SCRIPT_LOG_FILE
 +echo "" >> $STARTUP_SCRIPT_LOG_FILE
 +rm /tmp/wget.tmp.$etime
-#create cron script to run this all later +# The following commands are straight from HE's website
-# take this file from memory and put it into shell script file, so cron job can run it. +ip tunnel add he-ipv6 mode sit remote $SERVER_IP4_ADDR local $WANIP ttl 255
-echo "nvram get rc_startup > $SCRIPT_FILE" >$CRON_JOB_FILE +ip link set he-ipv6 up
-echo "chmod +x $SCRIPT_FILE" >>$CRON_JOB_FILE +ip addr add $CLIENT_IPV6_ADDR/64 dev he-ipv6
-echo "$SCRIPT_FILE" >> $CRON_JOB_FILE +ip route add ::/0 dev he-ipv6
-chmod +x $CRON_JOB_FILE +ip -f inet6 addr
-echo "Cron script created" >> $STARTUP_SCRIPT_LOG_FILE +TEMP_ADDR=`echo $ROUTED_64_ADDR'1'`
 +# These commands aren't on HE's website, but they're necessary for the tunnel to work
 +ip -6 addr add $TEMP_ADDR/64 dev br0
 +ip route add 2000::/3 dev he-ipv6
-echo "HE IPv6 Script finished" >> $STARTUP_SCRIPT_LOG_FILE +#Enable IPv6 forwarding
-fi+echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
-###############################################################################+# make sure to accept proto-41
-# v1.1 Jan 23, 2011 DAVE_SPAM VERSION (original by ac1115) +iptables -I INPUT 2 -p ipv6 -i vlan1 -j ACCEPT
-# HURRICANE ELECTRIC IPv6 TUNNEL SCRIPT +
-#****************************************************************************** +
-# USE THE LATEST VERSION OF DD-WRT, ie 15962 +
-# see: ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/12-24-10-r15962/ +
-# tested with DD-WRT 15962 voip version on WRT610nv2 with PPPoE WAN connection +
-# +
-# +
-# +
-#****************************************************************************** +
-#Settings start here +
-#****************************************************************************** +
-#### basic connection settings FROM http://www.tunnelbroker.net/tunnel_detail.php?tunnelid=NNNNNN +#make sure to not NAT proto-41
-SERVER_IP4_ADDR="enter ip here" +iptables -t nat -A POSTROUTING --proto ! 41 -o eth0 -j MASQUERADE
-CLIENT_IPV6_ADDR="enter ip here" +echo "creating radvd conf" >> $STARTUP_SCRIPT_LOG_FILE
-ROUTED_64_ADDR="enter ip here" +
-#### account info to auto update endpoint FROM http://www.tunnelbroker.net/main.php +if [ $ENABLE_OPENDNS_IPV6_DNS -eq 1 ]
-USERID="enter the long hex code - NOT text username" +then
-PASSWD="plain text password" + echo "Open DNS ipv6 enabled" >> $STARTUP_SCRIPT_LOG_FILE
-TUNNELID="your numeric GLOBAL tunnel id" + echo "nameserver 2620:0:ccc::2" >> /tmp/resolv.dnsmasq
- + echo "nameserver 2620:0:ccd::2" >> /tmp/resolv.dnsmasq
-#####Optional/Advanced Settings###### +fi
-#logging settings (set to /dev/null for no logging) +
-STARTUP_SCRIPT_LOG_FILE="/tmp/ipv6.log" +
-CRON_STATUS_LOG_FILE="/tmp/ipv6_lastHEUpdate.log" +
-#Generated files paths +#generate wanup script
-CRON_JOB_FILE="/tmp/ipv6_reload.sh" +if [ $ENABLE_WANUP_SCRIPT -eq 1 ]
-SCRIPT_FILE="/tmp/ipv6_run.sh" +then
-RADVD_CONFIG="/tmp/radvd.conf" + echo "WANUP script being generated" >> $STARTUP_SCRIPT_LOG_FILE
 + dirname $WANUP_SCRIPT_FILE_PATH | xargs mkdir
 + echo 'echo "WANUP script triggered on `date`" >>' $STARTUP_SCRIPT_LOG_FILE > $WANUP_SCRIPT_FILE_PATH
 + if [ $USE_NVRAM_WAN_ADDR_INSTEAD -eq 1 ]
 + then
 + echo -e 'WANIP=$(nvram get wan_ipaddr);' >> $WANUP_SCRIPT_FILE_PATH
 + else
 + echo -e 'WANIP=`wget $WAN_IP_SOURCE_ADDR -O - 2>/dev/null`' >> $WANUP_SCRIPT_FILE_PATH
 + fi
 + echo -e wget -q 'http://ipv4.tunnelbroker.net/ipv4_end.php?ip=$WANIP'"&pass=$MD5PASSWD&apikey=$USERID&tid=$TUNNELID" >> $WANUP_SCRIPT_FILE_PATH
 + echo 'ip tunnel change he-ipv6 local $WANIP'>> $WANUP_SCRIPT_FILE_PATH
 + chmod +x $WANUP_SCRIPT_FILE_PATH
 +fi
-#****************************************************************************** +#creating radvd.conf
-#Settings end here +echo "#generated by startup script" > $RADVD_CONFIG
-#****************************************************************************** +echo "interface br0 {" >> $RADVD_CONFIG
 +echo "AdvSendAdvert on;" >> $RADVD_CONFIG
 +echo "prefix "$ROUTED_64_ADDR"/64 {" >> $RADVD_CONFIG
 +echo "AdvOnLink on;" >> $RADVD_CONFIG
 +echo "AdvAutonomous on;" >> $RADVD_CONFIG
 +echo "AdvRouterAddr on;" >> $RADVD_CONFIG
 +echo "};" >> $RADVD_CONFIG
 +echo "};" >> $RADVD_CONFIG
-echo "HE IPv6 Script started" > $STARTUP_SCRIPT_LOG_FILE +echo "starting radvd" >> $STARTUP_SCRIPT_LOG_FILE
-date >> $STARTUP_SCRIPT_LOG_FILE +radvd -C $RADVD_CONFIG &
 +fi
 +</nowiki>
-insmod ipv6 +==Install Steps==
-#maybe needs to be incresed for slow boxes. +
-sleep 1.5 +
-#get a hash of the plaintext password +Installation steps:
-MD5PASSWD=`echo -n $PASSWD | md5sum | sed -e 's/ -//g'` +* Change the settings in the beginning of the above script to your settings.
-echo "" >> $STARTUP_SCRIPT_LOG_FILE +* Copy personalized script into Administration > Commands. Save as startup script
 +* Go into Administration > Management
 +* enable IPv6 and radvd. Leave the config box empty
 +* (Optional) enable cron and enter this into "Additional Cron Jobs"
 +Code:
 + * 4 * * * root /tmp/report.sh
-#cut out the "/64" if user typed it in +The above line will auto update the endpoint daily at 4am. Change to personal taste
-ROUTED_64_ADDR=`echo $ROUTED_64_ADDR|cut -f1 -d/` +* Apply settings, wait for reboot
-SERVER_IP4_ADDR=`echo $SERVER_IP4_ADDR|cut -f1 -d/` +
-CLIENT_IPV6_ADDR=`echo $CLIENT_IPV6_ADDR|cut -f1 -d/` +
-echo "User added addresses cleaned/checked" >> $STARTUP_SCRIPT_LOG_FILE +
-#do HE update  
-echo "Do HE Update" >> $STARTUP_SCRIPT_LOG_FILE  
-wget -q "http://ipv4.tunnelbroker.net/ipv4_end.php?ipv4b=AUTO&pass=$MD5PASSWD&user_id=$USERID&tunnel_id=$TUNNELID" -O - >> $STARTUP_SCRIPT_LOG_FILE  
-#get wan ip for our own use from internal variable +==OpenDNS Setting==
-WANIP=$(nvram get wan_ipaddr); +This setting will append the following two entries into /tmp/resolv.dnsmasq<br>
-echo " External IP detected as:" $WANIP >> $STARTUP_SCRIPT_LOG_FILE +
-echo " External IP detected as:" $WANIP +
-if [ -n $WANIP ] + <nowiki>
-then + nameserver 2620:0:ccc::2
-echo "configuring tunnel" >> $STARTUP_SCRIPT_LOG_FILE + nameserver 2620:0:ccd::2
-echo "configuring tunnel" +</nowiki>
-### create/update tunnel code +These will give dnsmasq access to the OpenDNS Sandbox DNS servers. These will give access to IPv6 only dns entries. (And will also give you double 10s on test-ipv6.com ;) ) <br>
-#fixes ioctl: No buffer space available ERROR +
-ip tunnel del he-ipv6 +
-# The following commands are from HE's website +
-ip tunnel add he-ipv6 mode sit remote $SERVER_IP4_ADDR local $WANIP ttl 255 +
-ip link set he-ipv6 up +
-ip addr add $CLIENT_IPV6_ADDR/64 dev he-ipv6 +
-ip route add ::/0 dev he-ipv6 +
-ip -f inet6 addr +
-TEMP_ADDR=`echo $ROUTED_64_ADDR'1'` +
-# These commands aren't on HE's website, but they're necessary for the tunnel to work +
-ip -6 addr add $TEMP_ADDR/64 dev br0 +
-ip route add 2000::/3 dev he-ipv6 +
-#Enable IPv6 forwarding +'''Dnsmasq must be enabled (DHCP Server) or this will not work!'''
-echo 1 > /proc/sys/net/ipv6/conf/all/forwarding +
-# make sure to accept proto-41 +Also dnsmasq needs to be used for DNS.
-iptables -I INPUT 2 -p ipv6 -i vlan1 -j ACCEPT +
-#make sure to not NAT proto-41 +On my working box, I have...<br>
-iptables -t nat -A POSTROUTING --proto ! 41 -o eth0 -j MASQUERADE +Under Setup...<br>
-echo "creating radvd conf" >> $STARTUP_SCRIPT_LOG_FILE +Static DNS1 - 208.67.222.222 ''(OpenDNS ipv4 dns server, not required)'' <br>
 +Static DNS2 - 208.67.220.220 ''(OpenDNS ipv4 dns server, not required)''<br>
 +Use DNSMasq for DHCP - Checked<br>
 +Use DNSMasq for DNS - Checked<br>
 +DHCP-Authoritative - Checked<br>
-#creating radvd.conf +Under Services...<br>
-echo "#generated by startup script" > $RADVD_CONFIG +DNSMasq - Enabled <br>
-echo "interface br0 {" >> $RADVD_CONFIG +Local DNS - Enabled <br>
-echo "AdvSendAdvert on;" >> $RADVD_CONFIG +No DNS Rebind - Disabled<br>
-echo "prefix "$ROUTED_64_ADDR"/64 {" >> $RADVD_CONFIG +
-echo "AdvOnLink on;" >> $RADVD_CONFIG +
-echo "AdvAutonomous on;" >> $RADVD_CONFIG +
-echo "AdvRouterAddr on;" >> $RADVD_CONFIG +
-echo "};" >> $RADVD_CONFIG +
-echo "};" >> $RADVD_CONFIG +
-#kill old versions of radvd  
-echo "killing any old versions of radvd" >> $STARTUP_SCRIPT_LOG_FILE  
-kill -s 9 $(cat /var/run/radvd.pid)  
-sleep 1  
-echo "starting radvd" >> $STARTUP_SCRIPT_LOG_FILE  
-radvd -C $RADVD_CONFIG &  
 +All clients have only 1 dns entry : 192.168.1.1 (My router's IP Address)<br>
-#create cron script to run this all later +==Reducing Script Size==
-# take this file from memory and put it into shell script file, so cron job can run it. +The script size is increasing as new features and error checking is added. Your NVRAM might be too small to hold this script along with the other settings your router uses.
-echo "nvram get rc_startup > $SCRIPT_FILE" >$CRON_JOB_FILE +
-echo "chmod +x $SCRIPT_FILE" >>$CRON_JOB_FILE +
-echo "$SCRIPT_FILE" >> $CRON_JOB_FILE +
-chmod +x $CRON_JOB_FILE +
-echo "Cron script created" >> $STARTUP_SCRIPT_LOG_FILE +
 +To get around this you could move the script to your jffs or usb partition then reference the script in Administrator > Command instead of copying the entire script.
 +
 +If you do not have a JFFS or USB partition, you can remove all the comments from the script and you can replace all the variable names with single letters. Both of these will significantly reduce the size of the script.
-echo "HE IPv6 Script finished" >> $STARTUP_SCRIPT_LOG_FILE  
-fi 
==See Also== ==See Also==
Line 279: Line 236:
ROUTED_64_ADDR="0000:000:0000:000::0" ROUTED_64_ADDR="0000:000:0000:000::0"
-[[Category:IPv6| ]]+[[Category:IPv6]]
-[[Category:Advanced tutorials]]+

Current revision

Contents

[edit] About

This will...
Set up HE's tunnel broker service.
Automatically finds your wan ip at boot using whatismyip.com
Automatically updates HE's endpoint on boot
Generates a radvd.conf on boot, and applies it automatically
Generates a executable file that can be used with cron to keep HE's endpoint up-to-date if you have a dynamic IP


My setup for reference.
Optimum Online Cable ISP
WRT610Nv2
v24-sp2 (Aug 12, 2010)
build 14929

You should have an account and tunnel created on the website. This post will not cover that. Install steps are below the script. This script will only work with /64 tunnels/addresses. Don't use it if you're using /48

[edit] Script

#v1.4 Feb 29, 2012
#***************************
#Settings start here
#***************************

#basic connection settings
SERVER_IP4_ADDR="enter ip here"
CLIENT_IPV6_ADDR="enter ip here"
ROUTED_64_ADDR="enter ip here"

#account info to auto update endpoint
USERID="enter your hex user id. NOT text username"
PASSWD="your plain text password"
TUNNELID="your numeric tunnel id"

#####Optional/Advanced Settings######

#IPv6 OpenDNS IPv6 Resolver
ENABLE_OPENDNS_IPV6_DNS=1

#HE's endpoint verificiation server ip to add to whitelist
HE_VERIFY_SERVER_IP="66.220.2.74"

#WAN IP Source settings
#Set below to 1 to use  internal NVRAM wan address instead of fetching it from a site
USE_NVRAM_WAN_ADDR_INSTEAD=1
WAN_IP_SOURCE_ADDR="http://automation.whatismyip.com/n09230945.asp"

#logging settings (set to /dev/null for no logging)
STARTUP_SCRIPT_LOG_FILE="/tmp/ipv6.log"
CRON_STATUS_LOG_FILE="/tmp/lastHEUpdate.log"

#Enable this to generate a .wanup script to automatically update local tunnel endpoint address on wan change
ENABLE_WANUP_SCRIPT=1
WANUP_SCRIPT_FILE_PATH="/tmp/etc/config/tunnelUpdate.wanup"

#Generated files paths
CRON_JOB_FILE="/tmp/report.sh"
RADVD_CONFIG="/tmp/radvd.conf"

#***************************
#Settings end here
#***************************

echo "" >> $STARTUP_SCRIPT_LOG_FILE
echo "HE IPv6 Script started" >> $STARTUP_SCRIPT_LOG_FILE

insmod ipv6
sleep 10

#get a hash of the plaintext password
MD5PASSWD=`echo -n $PASSWD | md5sum | sed -e 's/  -//g'`
echo `date` >> $STARTUP_SCRIPT_LOG_FILE

#cut out the "/64" if user typed it in
ROUTED_64_ADDR=`echo $ROUTED_64_ADDR|cut -f1 -d/`
SERVER_IP4_ADDR=`echo $SERVER_IP4_ADDR|cut -f1 -d/`
CLIENT_IPV6_ADDR=`echo $CLIENT_IPV6_ADDR|cut -f1 -d/`
echo "User added addresses cleaned/checked" >> $STARTUP_SCRIPT_LOG_FILE

#get wan ip for our own use
if [ $USE_NVRAM_WAN_ADDR_INSTEAD -eq 1 ]
then
  echo "Fetching WAN IP from NVRAM" >> $STARTUP_SCRIPT_LOG_FILE
  WANIP=$(nvram get wan_ipaddr);
else
  echo "Fetching WAN IP from External Site: " $WAN_IP_SOURCE_ADDR >> $STARTUP_SCRIPT_LOG_FILE
  WANIP=`wget $WAN_IP_SOURCE_ADDR -O - 2>/dev/null`
fi

echo "External IP detected as:" $WANIP >> $STARTUP_SCRIPT_LOG_FILE
if [ -n $WANIP ]
then
echo "configuring tunnel" >> $STARTUP_SCRIPT_LOG_FILE


#update HE endpoint
#need to alllow wan ping or HE will not validate new endpoint
iptables -I INPUT 2 -s $HE_VERIFY_SERVER_IP -p icmp -j ACCEPT
echo -e wget -q "http://ipv4.tunnelbroker.net/ipv4_end.php?ip=$WANIP&pass=$MD5PASSWD&apikey=$USERID&tid=$TUNNELID" -O $CRON_STATUS_LOG_FILE  >>$CRON_JOB_FILE
chmod +x $CRON_JOB_FILE
echo "Cron script created, sending endpoint update request to HE" >> $STARTUP_SCRIPT_LOG_FILE
etime=`date +%s`
wget -q "http://ipv4.tunnelbroker.net/ipv4_end.php?ip=$WANIP&pass=$MD5PASSWD&apikey=$USERID&tid=$TUNNELID" -O /tmp/wget.tmp.$etime
cat /tmp/wget.tmp.$etime >> $STARTUP_SCRIPT_LOG_FILE
echo "" >> $STARTUP_SCRIPT_LOG_FILE
rm /tmp/wget.tmp.$etime


# The following commands are straight from HE's website
ip tunnel add he-ipv6 mode sit remote $SERVER_IP4_ADDR local $WANIP ttl 255
ip link set he-ipv6 up
ip addr add $CLIENT_IPV6_ADDR/64 dev he-ipv6
ip route add ::/0 dev he-ipv6
ip -f inet6 addr
TEMP_ADDR=`echo $ROUTED_64_ADDR'1'`

# These commands aren't on HE's website, but they're necessary for the tunnel to work
ip -6 addr add $TEMP_ADDR/64 dev br0
ip route add 2000::/3 dev he-ipv6

#Enable IPv6 forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding

# make sure to accept proto-41
iptables -I INPUT 2 -p ipv6 -i vlan1 -j ACCEPT

#make sure to not NAT proto-41
iptables -t nat -A POSTROUTING --proto ! 41 -o eth0 -j MASQUERADE
echo "creating radvd conf" >> $STARTUP_SCRIPT_LOG_FILE

if [ $ENABLE_OPENDNS_IPV6_DNS -eq 1 ]
then
  echo "Open DNS ipv6 enabled" >> $STARTUP_SCRIPT_LOG_FILE
  echo "nameserver 2620:0:ccc::2" >> /tmp/resolv.dnsmasq
  echo "nameserver 2620:0:ccd::2" >> /tmp/resolv.dnsmasq
fi

#generate wanup script
if [ $ENABLE_WANUP_SCRIPT -eq 1 ]
then
	echo "WANUP script being generated" >> $STARTUP_SCRIPT_LOG_FILE
	dirname $WANUP_SCRIPT_FILE_PATH  | xargs mkdir
	echo 'echo "WANUP script triggered on `date`" >>' $STARTUP_SCRIPT_LOG_FILE > $WANUP_SCRIPT_FILE_PATH
	if [ $USE_NVRAM_WAN_ADDR_INSTEAD -eq 1 ]
	then
		echo -e 'WANIP=$(nvram get wan_ipaddr);' >> $WANUP_SCRIPT_FILE_PATH
	else
		echo -e 'WANIP=`wget $WAN_IP_SOURCE_ADDR -O - 2>/dev/null`' >> $WANUP_SCRIPT_FILE_PATH
	fi
	echo -e wget -q 'http://ipv4.tunnelbroker.net/ipv4_end.php?ip=$WANIP'"&pass=$MD5PASSWD&apikey=$USERID&tid=$TUNNELID"  >> $WANUP_SCRIPT_FILE_PATH
	echo 'ip tunnel change he-ipv6 local $WANIP'>>  $WANUP_SCRIPT_FILE_PATH
	chmod +x $WANUP_SCRIPT_FILE_PATH
fi	

#creating radvd.conf
echo "#generated by startup script" > $RADVD_CONFIG
echo "interface br0 {" >> $RADVD_CONFIG
echo "AdvSendAdvert on;" >> $RADVD_CONFIG
echo "prefix "$ROUTED_64_ADDR"/64 {" >> $RADVD_CONFIG
echo "AdvOnLink on;" >> $RADVD_CONFIG
echo "AdvAutonomous on;" >> $RADVD_CONFIG
echo "AdvRouterAddr on;" >> $RADVD_CONFIG
echo "};" >> $RADVD_CONFIG
echo "};" >> $RADVD_CONFIG

echo "starting radvd" >> $STARTUP_SCRIPT_LOG_FILE
radvd -C $RADVD_CONFIG &
fi

[edit] Install Steps

Installation steps:

  • Change the settings in the beginning of the above script to your settings.
  • Copy personalized script into Administration > Commands. Save as startup script
  • Go into Administration > Management
  • enable IPv6 and radvd. Leave the config box empty
  • (Optional) enable cron and enter this into "Additional Cron Jobs"

Code:

* 4 * * * root /tmp/report.sh

The above line will auto update the endpoint daily at 4am. Change to personal taste

  • Apply settings, wait for reboot


[edit] OpenDNS Setting

This setting will append the following two entries into /tmp/resolv.dnsmasq

 nameserver 2620:0:ccc::2
 nameserver 2620:0:ccd::2

These will give dnsmasq access to the OpenDNS Sandbox DNS servers. These will give access to IPv6 only dns entries. (And will also give you double 10s on test-ipv6.com ;) )

Dnsmasq must be enabled (DHCP Server) or this will not work!

Also dnsmasq needs to be used for DNS.

On my working box, I have...
Under Setup...
Static DNS1 - 208.67.222.222 (OpenDNS ipv4 dns server, not required)
Static DNS2 - 208.67.220.220 (OpenDNS ipv4 dns server, not required)
Use DNSMasq for DHCP - Checked
Use DNSMasq for DNS - Checked
DHCP-Authoritative - Checked

Under Services...
DNSMasq - Enabled
Local DNS - Enabled
No DNS Rebind - Disabled


All clients have only 1 dns entry : 192.168.1.1 (My router's IP Address)

[edit] Reducing Script Size

The script size is increasing as new features and error checking is added. Your NVRAM might be too small to hold this script along with the other settings your router uses.

To get around this you could move the script to your jffs or usb partition then reference the script in Administrator > Command instead of copying the entire script.

If you do not have a JFFS or USB partition, you can remove all the comments from the script and you can replace all the variable names with single letters. Both of these will significantly reduce the size of the script.


[edit] See Also

Test the setup with e.g.:
http://ipv6.google.com
http://aaaa.test-ipv6.com/

Forum link:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=81060

Example of Basic Connection settings syntax

SERVER_IP4_ADDR="0.0.0.0"
CLIENT_IPV6_ADDR="0000:000:0000:000::0"
ROUTED_64_ADDR="0000:000:0000:000::0"