Difference between revisions of "IPsec VPN"

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We now have a new [http://www.amahi.org/apps/ipsec-vpn IPsec VPN] app for your HDA!
 
  
 +
We now have a new Amahi [http://www.amahi.org/apps/ipsec-vpn IPsec VPN app] for your HDA!
 +
 +
= Introduction =
 
This VPN stack has many advantages, although it still requires two ports to be forwarded from your router to your HDA. These are
 
This VPN stack has many advantages, although it still requires two ports to be forwarded from your router to your HDA. These are
  
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* [[IPSec VPN Mac OS X Client | Mac OS X]] built-in client
 
* [[IPSec VPN Mac OS X Client | Mac OS X]] built-in client
 
* [[IPSec VPN Android Client | Android]] built-in client, (ICS, i.e. 4.x or later)
 
* [[IPSec VPN Android Client | Android]] built-in client, (ICS, i.e. 4.x or later)
 +
  
 
The Android (2.x/3.x) OS is known to be broken with respect to [http://www.amahi.org/apps/ipsec-vpn IPSec VPN].  See [[IPSEC/L2TP_VPN_Server|here]] for a manual implementation that should work.
 
The Android (2.x/3.x) OS is known to be broken with respect to [http://www.amahi.org/apps/ipsec-vpn IPSec VPN].  See [[IPSEC/L2TP_VPN_Server|here]] for a manual implementation that should work.
  
= Changing the Secret and/or the Group Name =
+
'''NOTE:'''  By default, the VPN will only route traffic destined for your home network via the VPN.  General web traffic etc, will *not* be encrypted.  To change this behaviour so that all network traffic from your client is routed via your VPN, edit /etc/racoon/racoon.conf and remove the lines beginning "split_network" and "split_dns". The restart racoon.
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 +
= Changing Secret and/or Group Name =
  
 
Optionally, you can change the secret and/or group name.
 
Optionally, you can change the secret and/or group name.
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         service racoon restart
 
         service racoon restart
  
= Route All IPSEC VPN traffic through IPSEC VPN =
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= Route All traffic through VPN (Amahi 6/Ubuntu) =
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 +
After you install IPSEC VPN and configure your router and iPhone correctly, you may find that Twitter and Facebook are still blocked by some networks. Also searching for "what is my ip" via Google or your favorite search engine will report back that you are still on the local network.
 +
 
 +
The Amahi VPN is set to use a split VPN tunnel by default.  If you want to use blocked services while behind somebody's internet filters, you can use these steps to encrypt your traffic and use blocked services like Twitter and Facebook.
 +
 
 +
Below are the steps to direct all traffic through the VPN.  Please note this will divert all of your traffic through your HDA, but you will not be able to access some of your network resources.
  
After you install IPSEC VPN and configure your router and iPhone correctly, you may find that twitter and facebook are still blocked by some networks.Also google-ing "what is my ip" will report back that you are still on the local network.
+
1. Open a terminal on your HDA or use SSH.<br />
  
The Amahi VPN is set to use a split VPN tunnel by defaultIf you want to use blocked services while behind somebody's internet filters, you can use these steps to encrypt your traffic and use blocked services like twitter and facebook.
+
2. Go to /etc/racoon.
 +
  cd /etc/racoon
  
Below are the steps to direct all traffic through the VPNPlease note:  this will divert all of your traffic through your hda, but you will not be able to access some of your network resources.
+
3. Back up the original racoon.conf in case things break.<br />
 +
  cp racoon.conf racoon.conf.orig
  
1 Open a terminal on your hda or ssh in.
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4. As root user, open racoon.conf with your favorite editor.
2 Go to /etc/racoon (that is spelled correctly BTW)
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sudo nano racoon.conf
{{Code| cd /etc/racoon}}
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3 Back-up the original racoon.conf in case things break
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5. Go to the line with "mode_cfg".
4 As root, open racoon.conf with your favorite editor, mine happens to be nano
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<pre>mode_cfg {
{{Code| sudo nano racoon.conf}}
 
5 down arrow to the mode_cfg
 
{{Code| mode_cfg {
 
 
auth_source system;
 
auth_source system;
 
         save_passwd on;
 
         save_passwd on;
Line 55: Line 65:
 
         dns4 192.168.1.10;
 
         dns4 192.168.1.10;
 
         wins4 192.168.1.10;
 
         wins4 192.168.1.10;
         default_domain "Jamahi3.com";
+
         default_domain "amahi3.com";
 
         auth_throttle 60;
 
         auth_throttle 60;
 
         split_network include 198.162.1.0/24 10.100.100.0/24;
 
         split_network include 198.162.1.0/24 10.100.100.0/24;
 
         split_dns "home.com";
 
         split_dns "home.com";
 
         banner "/etc/racoon/welcome.txt";
 
         banner "/etc/racoon/welcome.txt";
}
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}</pre>
}}
+
 
note: I'm going to concentrate on the two lines that I changed: "split_network" and "split_dns".
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6 Change split_network from "include" to "local_lan" and delete the 198.162.... range.
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{{Code| mode_cfg {
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<b>NOTE:</b> Let's concentrate on the two lines that were changed: "split_network" and "split_dns".
 +
 
 +
6. Change split_network from "include" to "local_lan" and delete the 198.162.... range.
 +
<pre>mode_cfg {
 
~~
 
~~
         split_network local_lan 10.100.100.0/24;       
+
         split_network local_lan 10.100.100.0/24;</pre>      
}}
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7 I also changed split_dns to the name that I changed my home domain to...
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{{Code| mode_cfg {
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7. Also change "split_dns" to the name that I changed home domain to...
 +
<pre>mode_cfg {
 
~~
 
~~
         split_dns "Jamahi3.com";
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         split_dns "amahi3.com";</pre>
}}
+
 
8 Save your work
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9 Restart the racoon server
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8. Save your work<br />
{{Code| sudo service racoon restart       
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}}
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9. Restart the racoon server
Or - open up your hda, click on settings>servers and restart the IPSEC server.
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 +
sudo service racoon restart       
 +
 
 +
 
 +
Or open up your HDA dashboard, click on settings->servers and restart the IPSEC server.
  
Googling "What is My IP" should now report your home VPN.  You should then be able to use twitter and facebook through your VPN.
+
Searching for "what is my ip" via Google or your favorite search engine should now report your home VPN.  You should then be able to use Twitter and Facebook through your VPN.
  
= Forwarding all traffic through the VPN =
+
= Route all traffic through VPN (Fedora) =
  
  
Line 90: Line 108:
 
delete the 2 lines with split in mode_cfg  :
 
delete the 2 lines with split in mode_cfg  :
  
{{Code|split_network include 192.168.1.0/24, 10.8.1.0/24;
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split_network include 192.168.1.0/24, 10.8.1.0/24;
split_dns "home.com";}}
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split_dns "home.com";
  
  
Line 97: Line 115:
 
<br>At /etc/racoon/amahi-up-down change the lines 19 and 26 from eth0 to em1 because this is the network interface of my Hda. The changes are
 
<br>At /etc/racoon/amahi-up-down change the lines 19 and 26 from eth0 to em1 because this is the network interface of my Hda. The changes are
 
<br>from:
 
<br>from:
{{Code| iptables -t nat -A POSTROUTING -s ${INTERNAL_ADDR4}/32 -o eth0 -j MASQUERADE}}
+
iptables -t nat -A POSTROUTING -s ${INTERNAL_ADDR4}/32 -o eth0 -j MASQUERADE
 
to
 
to
{{Code| iptables -t nat -A POSTROUTING -s ${INTERNAL_ADDR4}/32 -o em1 -j MASQUERADE}}
+
iptables -t nat -A POSTROUTING -s ${INTERNAL_ADDR4}/32 -o em1 -j MASQUERADE
  
 
and from:
 
and from:
{{Code| iptables -t nat -D POSTROUTING -s ${INTERNAL_ADDR4}/32 -o eth0 -j MASQUERADE}}
+
iptables -t nat -D POSTROUTING -s ${INTERNAL_ADDR4}/32 -o eth0 -j MASQUERADE
 
<br>to
 
<br>to
{{Code| iptables -t nat -D POSTROUTING -s ${INTERNAL_ADDR4}/32 -o em1 -j MASQUERADE}}
+
iptables -t nat -D POSTROUTING -s ${INTERNAL_ADDR4}/32 -o em1 -j MASQUERADE
  
Finally I go to http://hda->Setup->Settings->Servers and restart the IPsec VPN Server.
+
Finally go to <nowiki>http://hda</nowiki>->Setup->Settings->Servers and restart the IPsec VPN Server.

Latest revision as of 10:30, 13 June 2017

We now have a new Amahi IPsec VPN app for your HDA!

Introduction

This VPN stack has many advantages, although it still requires two ports to be forwarded from your router to your HDA. These are

 500 UDP and 4500 UDP

UDP, not TCP.

Here is how to set up clients for various client operating systems:


The Android (2.x/3.x) OS is known to be broken with respect to IPSec VPN. See here for a manual implementation that should work.

NOTE: By default, the VPN will only route traffic destined for your home network via the VPN. General web traffic etc, will *not* be encrypted. To change this behaviour so that all network traffic from your client is routed via your VPN, edit /etc/racoon/racoon.conf and remove the lines beginning "split_network" and "split_dns". The restart racoon.

Changing Secret and/or Group Name

Optionally, you can change the secret and/or group name.

For that, you have to be able to edit a system file as root.

Become root via ssh or a terminal and then edit this file:

         /etc/racoon/psk.txt

This file has two field separated by at least one space. The first one is the Group name and the second is the Secret. Change them , keeping in mind that.

The changes will be picked up automatically a few seconds later. If you want to make sure, perform a:

        service racoon restart

Route All traffic through VPN (Amahi 6/Ubuntu)

After you install IPSEC VPN and configure your router and iPhone correctly, you may find that Twitter and Facebook are still blocked by some networks. Also searching for "what is my ip" via Google or your favorite search engine will report back that you are still on the local network.

The Amahi VPN is set to use a split VPN tunnel by default. If you want to use blocked services while behind somebody's internet filters, you can use these steps to encrypt your traffic and use blocked services like Twitter and Facebook.

Below are the steps to direct all traffic through the VPN. Please note this will divert all of your traffic through your HDA, but you will not be able to access some of your network resources.

1. Open a terminal on your HDA or use SSH.

2. Go to /etc/racoon.

cd /etc/racoon

3. Back up the original racoon.conf in case things break.

cp racoon.conf racoon.conf.orig

4. As root user, open racoon.conf with your favorite editor.

sudo nano racoon.conf

5. Go to the line with "mode_cfg".

mode_cfg {
	auth_source system;
        save_passwd on;
        network4 10.8.1.1;
        netmask4 255.255.255.0;
        pool_size 10;
        dns4 192.168.1.10;
        wins4 192.168.1.10;
        default_domain "amahi3.com";
        auth_throttle 60;
        split_network include 198.162.1.0/24 10.100.100.0/24;
        split_dns "home.com";
        banner "/etc/racoon/welcome.txt";
}


NOTE: Let's concentrate on the two lines that were changed: "split_network" and "split_dns".

6. Change split_network from "include" to "local_lan" and delete the 198.162.... range.

mode_cfg {
~~
        split_network local_lan 10.100.100.0/24;


7. Also change "split_dns" to the name that I changed home domain to...

mode_cfg {
~~
        split_dns "amahi3.com";


8. Save your work

9. Restart the racoon server

sudo service racoon restart      


Or open up your HDA dashboard, click on settings->servers and restart the IPSEC server.

Searching for "what is my ip" via Google or your favorite search engine should now report your home VPN. You should then be able to use Twitter and Facebook through your VPN.

Route all traffic through VPN (Fedora)

Solution for IPSec VPN Server in Fedora 19 with Amahi 7 in order to Forward all traffic through the VPN


1. At /etc/racoon/racoon.conf delete the 2 lines with split in mode_cfg :

split_network include 192.168.1.0/24, 10.8.1.0/24;
split_dns "home.com";


2. At your Hda run ifconfig to see what is your network interface.
At /etc/racoon/amahi-up-down change the lines 19 and 26 from eth0 to em1 because this is the network interface of my Hda. The changes are
from:

iptables -t nat -A POSTROUTING -s ${INTERNAL_ADDR4}/32 -o eth0 -j MASQUERADE

to

iptables -t nat -A POSTROUTING -s ${INTERNAL_ADDR4}/32 -o em1 -j MASQUERADE

and from:

iptables -t nat -D POSTROUTING -s ${INTERNAL_ADDR4}/32 -o eth0 -j MASQUERADE


to

iptables -t nat -D POSTROUTING -s ${INTERNAL_ADDR4}/32 -o em1 -j MASQUERADE

Finally go to http://hda->Setup->Settings->Servers and restart the IPsec VPN Server.