OpenVPN dd-wrt

PLEASE READ THROUGH THIS WHOLE ARTICLE! YOU RISK BREAKING YOUR ROUTER WHEN USING A CUSTOM FIRMWARE! PROCEED CAREFULLY AND MAKE SURE YOUR ROUTER IS COMPATIBLE! PLEASE READ THROUGH THIS WHOLE ARTICLE! YOU RISK BREAKING YOUR ROUTER WHEN USING A CUSTOM FIRMWARE! PROCEED CAREFULLY AND MAKE SURE YOUR ROUTER IS COMPATIBLE!

REQUIREMENTS

These instructions are ONLY for people who already have a dd-wrt compatible router flashed with the latest version.

In this tutorial, a DIR-825 rev. B2 was used. Firmware: DD-WRT v24-sp2 (05/27/13) std.

If you're having issues with OpenVPN, please try the PPTP method.

Links

Setup Instructions

1. Connect and Log into your router by going to http://192.168.1.1/ or http://192.168.0.1/
2. Click on the Administration tab and then on Commands.
3. Copy the whole content of the ddwrt_btguard.txt file in the Command Shell.
ZIP with both .txt files

<div style="textarea" onclick="this.select()" readonly> #!/bin/sh USERNAME="replace with your username" PASSWORD="replace with your password" PROTOCOL="udp" REMOTE_SERVERS=" remote vpn.btguard.com 1194 " #### DO NOT CHANGE below this line #### CA_CRT='-----BEGIN CERTIFICATE----- MIIDcjCCAtugAwIBAgIJAPKjuBleHokmMA0GCSqGSIb3DQEBBQUAMIGDMQswCQYD VQQGEwJERTEVMBMGA1UECBMMSGVzc2UtTmFzc2F1MRIwEAYDVQQHEwlGcmFua2Z1 cnQxEDAOBgNVBAoTB0JUR3VhcmQxEzARBgNVBAMTCkJUR3VhcmQgQ0ExIjAgBgkq hkiG9w0BCQEWE3N1cHBvcnRAYnRndWFyZC5jb20wHhcNMTAwODA3MDc0NTA5WhcN MjAwODA0MDc0NTA5WjCBgzELMAkGA1UEBhMCREUxFTATBgNVBAgTDEhlc3NlLU5h c3NhdTESMBAGA1UEBxMJRnJhbmtmdXJ0MRAwDgYDVQQKEwdCVEd1YXJkMRMwEQYD VQQDEwpCVEd1YXJkIENBMSIwIAYJKoZIhvcNAQkBFhNzdXBwb3J0QGJ0Z3VhcmQu Y29tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4cBR6VLQICqdpTsjosIQ5 9elQZSRNQFaxWW3MeRC1xpJqjkbLJ9B9IO/Q/UyOa4a3qYHg8rI43wIF/RR6bwNX 3sZ5w6TrdVBk0DFZq6lDQ8/4Kpg1dKbdAgJjvtxiyrHWFtB0jYVGTlxwBSPflc2J RZDMAVVj83gQh8ODJeGjnwIDAQABo4HrMIHoMB0GA1UdDgQWBBQCj1U+EICMz8hF ++KZ8Ld1vR0sqTCBuAYDVR0jBIGwMIGtgBQCj1U+EICMz8hF++KZ8Ld1vR0sqaGB iaSBhjCBgzELMAkGA1UEBhMCREUxFTATBgNVBAgTDEhlc3NlLU5hc3NhdTESMBAG A1UEBxMJRnJhbmtmdXJ0MRAwDgYDVQQKEwdCVEd1YXJkMRMwEQYDVQQDEwpCVEd1 YXJkIENBMSIwIAYJKoZIhvcNAQkBFhNzdXBwb3J0QGJ0Z3VhcmQuY29tggkA8qO4 GV4eiSYwDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQUFAAOBgQAgVeYTxvAonucE qWloEvzCCUWs8bS/HJ6M85WzG7FPNAXx2QbWwN3EMwKxtGc7QF8f+APoMukzsvd2 vuI+1n0YwtD12cWMM9PLV2FhA2B+ajzssBTgvrbtX/SzKt0//lzrBp5Gyo6T/vO5 9KRb6DVfVWfB76+DLpTf9f3SLTgzKw== -----END CERTIFICATE-----' OPVPNENABLE=`nvram get openvpncl_enable | awk '$1 == "0" {print $1}'` if [ "$OPVPNENABLE" != 0 ] then nvram set openvpncl_enable=0 nvram commit fi sleep 30 mkdir /tmp/btguard; cd /tmp/btguard echo -e "$USERNAME\n$PASSWORD" > userpass.conf echo "$CA_CRT" > ca.crt echo "#!/bin/sh" > route-up.sh; echo -e "#!/bin/sh\nsleep 2" > route-down.sh echo "#!/bin/sh iptables -I FORWARD -i br0 -o tun0 -j ACCEPT iptables -I FORWARD -i tun0 -o br0 -j ACCEPT iptables -I INPUT -i tun0 -j REJECT iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE" > /tmp/.rc_firewall chmod 644 ca.crt; chmod 600 userpass.conf; chmod 700 route-up.sh route-down.sh chmod 700 /tmp/.rc_firewall sleep 30 echo "client dev tun proto $PROTOCOL script-security 2 hand-window 60 verb 3 mute 5 mtu-disc yes resolv-retry infinite nobind persist-key persist-tun keepalive 20 120 reneg-sec 0 log btguard.log ca ca.crt mute-replay-warnings daemon auth-user-pass userpass.conf $REMOTE_SERVERS" > openvpn.conf ln -s /tmp/btguard/btguard.log /tmp/btguard.log (killall openvpn; openvpn --config /tmp/btguard/openvpn.conf --route-up /tmp/btguard/route-up.sh --down-pre /tmp/btguard/route-down.sh) & exit 0 </div> 4. Type in your <b>username</b> and <b>password</b>. <br /> <i>Both username and password are case sensitive.</i> <br /> <i>If UDP doesn't work, please type tcp instead of udp.</i> <br /> 5. Click on <b>Save Startup</b>. <br /> </p> </p> </div> </div> <div class="wrapper"> <div class="wrapleft"> <div class="left"> <p><span class="plainlinks"><a rel="nofollow" class="external text" href="http://wiki.btguard.com/images/e/ed/Openvpn_ddwrt_2.png"><img src="http://wiki.btguard.com/images/e/ed/Openvpn_ddwrt_2.png" alt="Openvpn_ddwrt_2.png" /></a></span> </p> </div> </div> <div class="right"> <p> <br />6. Copy the whole content of the <a rel="nofollow" class="external text" href="http://wiki.btguard.com/uploads/ddwrt_firewall.txt">ddwrt_firewall.txt</a> file in the <b>Command Shell</b>. <br /> 7. Click on <b>Save Firewall</b> <br /> <br /> <hr /> <p><br /> </p> <hr /> <ul> <li><b>ddwrt_btguard.txt</b> Full Content:<br /> </li> </ul> <p><b>START</b> </p><p><b>END</b> <br /> </p> <hr /> </p> </div> </div> <div class="wrapper"> <div class="wrapleft"> <div class="left"> <p><span class="plainlinks"><a rel="nofollow" class="external text" href="http://wiki.btguard.com/images/d/d9/Openvpn_ddwrt_3.png"><img src="http://wiki.btguard.com/images/d/d9/Openvpn_ddwrt_3.png" alt="Openvpn_ddwrt_3.png" /></a></span> </p> </div> </div> <div class="right"> <p> 8. Your settings should look like this. <br /> <i>Please make sure your username and password are typed in correctly! Both are case sensitive.</i> <br /> 9. Now click on the <b>Management tab</b>, go to the bottom of the page and click on <b>Reboot Router</b>. <br /> <br /> Setup Complete! <br /> <br /> The router will reboot and it will take it a minute or two to finish setting everything up. <br /> </p> </div> </div>  </div><div class="printfooter"> Retrieved from "<a href="https://wiki.btguard.com/index.php?title=OpenVPN_dd-wrt&oldid=1286">https://wiki.btguard.com/index.php?title=OpenVPN_dd-wrt&oldid=1286</a>"</div> <div id='catlinks' class='catlinks catlinks-allhidden'></div>  <div class="visualClear"></div> </div> </div></div> <div id="column-one"> <h2>Navigation menu</h2> <div id="p-cactions" class="portlet" role="navigation"> <h3>Views</h3> <div class="pBody"> <ul> <li id="ca-nstab-main" class="selected"><a href="/index.php/OpenVPN_dd-wrt" title="View the content page [c]" accesskey="c">Page</a></li> <li id="ca-talk" class="new"><a href="/index.php?title=Talk:OpenVPN_dd-wrt&action=edit&redlink=1" title="Discussion about the content page [t]" accesskey="t">Discussion</a></li> <li id="ca-viewsource"><a href="/index.php?title=OpenVPN_dd-wrt&action=edit&oldid=1286" title="This page is protected. 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