138 lines
8.9 KiB
Markdown
138 lines
8.9 KiB
Markdown
## Configure IPsec/L2TP VPN Clients
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*Read this in other languages: [English](clients.md), [简体中文](clients-zh.md).*
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*To connect using IPsec/XAuth mode, see: [Configure IPsec/XAuth VPN Clients](clients-xauth.md)*
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After <a href="https://github.com/hwdsl2/setup-ipsec-vpn" target="_blank">setting up your own VPN server</a>, follow these steps to configure your devices. IPsec/L2TP is natively supported by Android, iOS, OS X, and Windows. There is no additional software to install. Setup should only take a few minutes. In case you are unable to connect, first check to make sure the VPN credentials were entered correctly.
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---
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* Platforms
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* [Windows](#windows)
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* [OS X](#os-x)
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* [Android](#android)
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* [iOS](#ios)
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* [Chromebook](#chromebook)
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### Windows ###
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1. Click on the Start Menu and go to the Control Panel.
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1. Go to the **Network and Internet** section.
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1. Click **Network and Sharing Center**.
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1. Click **Set up a new connection or network**.
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1. Select **Connect to a workplace** and click **Next**.
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1. Click **Use my Internet connection (VPN)**.
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1. Enter `Your VPN Server IP` in the **Internet address** field.
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1. Enter anything you like in the **Destination name** field.
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1. Check the **Don't connect now; just set it up so I can connect later** checkbox.
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1. Click **Next**.
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1. Enter `Your VPN Username` in the **User name** field.
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1. Enter `Your VPN Password` in the **Password** field.
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1. Check the **Remember this password** checkbox.
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1. Click **Connect**, then click the **Close** button.
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1. Return to the Control Panel's **Network and Internet** section and click on the **Connect to a network** option.
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1. Right-click on the new VPN connection and choose **Properties**.
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1. Click the **Options** tab and uncheck **Include Windows logon domain**.
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1. Click the **Security** tab and select **Layer 2 Tunneling Protocol with IPsec (L2TP/IPSec)** from the **Type of VPN** drop-down menu. Under "Allow these protocols", select the `CHAP` checkbox, and de-select `MS-CHAP v2`.
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1. Click the **Advanced settings** button.
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1. Select **Use preshared key for authentication** and enter `Your VPN IPsec PSK` for the **Key**.
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1. Click **OK** to close the **Advanced settings**.
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1. Click **OK** to save the VPN connection details.
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<a id="regkey"></a>
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To connect to the VPN, simply right-click on the wireless/network icon in your system tray, select the new VPN connection, and click **Connect**. You can verify that your traffic is being routed properly by <a href="https://encrypted.google.com/search?q=my+ip" target="_blank">looking up your IP address on Google</a>. It should say "Your public IP address is `Your VPN Server IP`".
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**Note:** A <a href="https://documentation.meraki.com/MX-Z/Client_VPN/Troubleshooting_Client_VPN#Windows_Error_809" target="_blank">one-time registry change</a> is required if the VPN server and/or client is behind NAT (e.g. home router). Please refer to the linked page, or run the following from an <a href="http://windows.microsoft.com/en-us/windows/command-prompt-faq#1TC=windows-7" target="_blank">elevated command prompt</a>. You must reboot your computer when done.
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- For Windows Vista and newer
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```console
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REG ADD HKLM\SYSTEM\CurrentControlSet\Services\PolicyAgent /v AssumeUDPEncapsulationContextOnSendRule /t REG_DWORD /d 0x2 /f
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```
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- For Windows XP only
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```console
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REG ADD HKLM\SYSTEM\CurrentControlSet\Services\IPSec /v AssumeUDPEncapsulationContextOnSendRule /t REG_DWORD /d 0x2 /f
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```
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### OS X ###
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1. Open System Preferences and go to the Network section.
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1. Click the **+** button in the lower-left corner of the window.
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1. Select **VPN** from the **Interface** drop-down menu.
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1. Select **L2TP over IPSec** from the **VPN Type** drop-down menu.
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1. Enter anything you like for the **Service Name**.
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1. Click **Create**.
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1. Enter `Your VPN Server IP` for the **Server Address**.
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1. Enter `Your VPN Username` for the **Account Name**.
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1. Click the **Authentication Settings** button.
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1. In the **User Authentication** section, select the **Password** radio button and enter `Your VPN Password` as its value.
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1. In the **Machine Authentication** section, select the **Shared Secret** radio button and enter `Your VPN IPsec PSK` as its value.
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1. Click **OK**.
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1. Check the **Show VPN status in menu bar** checkbox.
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1. Click the **Advanced** button and make sure the **Send all traffic over VPN connection** checkbox is selected.
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1. Click the **TCP/IP** tab, and make sure **Link-local only** is selected in the **Configure IPv6** section.
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1. Click **OK** to close the Advanced settings, and then click **Apply** to save the VPN connection information.
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You can connect to the VPN using the VPN icon in the menu bar, or by selecting the VPN in the Network section of System Preferences and choosing **Connect**. You can verify that your traffic is being routed properly by <a href="https://encrypted.google.com/search?q=my+ip" target="_blank">looking up your IP address on Google</a>. It should say "Your public IP address is `Your VPN Server IP`".
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### Android ###
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1. Launch the **Settings** application.
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1. Tap **More...** in the **Wireless & Networks** section.
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1. Tap **VPN**.
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1. Tap **Add VPN Profile** or the **+** icon at top-right of screen.
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1. Enter anything you like in the **Name** field.
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1. Select **L2TP/IPSec PSK** in the **Type** drop-down menu.
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1. Enter `Your VPN Server IP` in the **Server address** field.
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1. Enter `Your VPN IPsec PSK` in the **IPSec pre-shared key** field.
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1. Tap **Save**.
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1. Tap the new VPN connection.
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1. Enter `Your VPN Username` in the **Username** field.
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1. Enter `Your VPN Password` in the **Password** field.
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1. Check the **Save account information** checkbox.
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1. Tap **Connect**.
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Note for Android 6 (Marshmallow) users: On the VPN server, edit `/etc/ipsec.conf` and append `,aes256-sha2_256` to both `ike=` and `phase2alg=` lines. Then add a new line `sha2-truncbug=yes` under section `conn shared` (<a href="https://libreswan.org/wiki/FAQ#Android_6.0_connection_comes_up_but_no_packet_flow" target="_blank">Reference</a>). Indent lines with two spaces. When finished, run `service ipsec restart`.
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Once connected, you will see a VPN icon in the notification bar. You can verify that your traffic is being routed properly by <a href="https://encrypted.google.com/search?q=my+ip" target="_blank">looking up your IP address on Google</a>. It should say "Your public IP address is `Your VPN Server IP`".
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### iOS ###
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1. Go to Settings -> General -> VPN.
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1. Tap **Add VPN Configuration...**.
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1. Tap **Type**. Select **L2TP** and go back.
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1. Tap **Description** and enter anything you like.
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1. Tap **Server** and enter `Your VPN Server IP`.
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1. Tap **Account** and enter `Your VPN Username`.
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1. Tap **Password** and enter `Your VPN Password`.
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1. Tap **Secret** and enter `Your VPN IPsec PSK`.
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1. Make sure the **Send All Traffic** switch is ON.
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1. Tap **Done**.
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1. Slide the **VPN** switch ON.
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Once connected, you will see a VPN icon in the status bar. You can verify that your traffic is being routed properly by <a href="https://encrypted.google.com/search?q=my+ip" target="_blank">looking up your IP address on Google</a>. It should say "Your public IP address is `Your VPN Server IP`".
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### Chromebook ###
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1. If you haven't already, sign in to your Chromebook.
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1. Click the status area, where your account picture appears.
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1. Click **Settings**.
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1. In the **Internet connection** section, click **Add connection**.
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1. Click **Add OpenVPN / L2TP**.
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1. Enter `Your VPN Server IP` for the **Server hostname**.
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1. Enter anything you like for the **Service name**.
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1. Make sure **Provider type** is **L2TP/IPSec + pre-shared key**.
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1. Enter `Your VPN IPsec PSK` for the **Pre-shared key**.
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1. Enter `Your VPN Username` for the **Username**.
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1. Enter `Your VPN Password` for the **Password**.
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1. Click **Connect**.
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Once connected, you will see a VPN icon overlay on the network status icon. You can verify that your traffic is being routed properly by <a href="https://encrypted.google.com/search?q=my+ip" target="_blank">looking up your IP address on Google</a>. It should say "Your public IP address is `Your VPN Server IP`".
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## Acknowledgement
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This document was adapted from the <a href="https://github.com/jlund/streisand" target="_blank">Streisand</a> project by Joshua Lund and contributors.
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## License
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Copyright (C) 2016 Lin Song
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Based on <a href="https://github.com/jlund/streisand/blob/master/playbooks/roles/l2tp-ipsec/templates/instructions.md.j2" target="_blank">the work of Joshua Lund</a> (Copyright 2014-2016)
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This program is free software: you can redistribute it and/or modify it under the terms of the <a href="https://www.gnu.org/licenses/gpl.html" target="_blank">GNU General Public License</a> as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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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.
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