115 lines
7.3 KiB
Markdown
115 lines
7.3 KiB
Markdown
## Configure IPsec/XAuth VPN Clients
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*Read this in other languages: [English](clients-xauth.md), [简体中文](clients-xauth-zh.md).*
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*To connect using IPsec/L2TP mode, see: [Configure IPsec/L2TP VPN Clients](clients.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/XAuth is natively supported by Android, iOS and OS X. There is no additional software to install. Windows users can use the free <a href="https://www.shrew.net/download/vpn" target="_blank">Shrew Soft client</a>. In case you are unable to connect, first check to make sure the VPN credentials were entered correctly.
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`IPsec/XAuth` mode is also called `Cisco IPsec`. Compared to `IPsec/L2TP`, it is generally faster with less overhead.
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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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### Windows ###
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**Note:** You can also connect using [IPsec/L2TP mode](clients.md). No additional software is required.
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1. Download and install the free <a href="https://www.shrew.net/download/vpn" target="_blank">Shrew Soft VPN client</a>.
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1. Click Start Menu -> All Programs -> ShrewSoft VPN Client -> VPN Access Manager
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1. Click the **Add (+)** button on toolbar.
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1. Enter `Your VPN Server IP` in the **Host Name or IP Address** field.
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1. Click the **Authentication** tab. Select **Mutual PSK + XAuth** from the **Authentication Method** drop-down menu.
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1. Click the **Credentials** tab below. Enter `Your VPN IPsec PSK` in the **Pre Shared Key** field.
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1. Click the **Phase 1** tab. Select **main** from the **Exchange Type** drop-down menu.
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1. Click **Save** to save the VPN connection details.
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1. Select the new VPN connection. Click the **Connect** button on toolbar.
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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. Click **Connect**.
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Once connected, you will see **tunnel enabled** in the VPN Connect status window. 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, 7, 8 and 10
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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 **Cisco 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. Enter `Your VPN Password` for the **Password**.
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1. Click the **Authentication Settings** button.
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1. In the **Machine Authentication** section, select the **Shared Secret** radio button and enter `Your VPN IPsec PSK`.
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1. Leave the **Group Name** field blank.
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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 **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 **IPSec Xauth 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. Leave the **IPSec identifier** field blank.
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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:** Android 6 (Marshmallow) users should edit `/etc/ipsec.conf` on the VPN server and append `,aes256-sha2_256` to both `ike=` and `phase2alg=` lines. Then add a new line `sha2-truncbug=yes` immediately after those. Indent lines with two spaces. When finished, run `service ipsec restart`. (<a href="https://libreswan.org/wiki/FAQ#Android_6.0_connection_comes_up_but_no_packet_flow" target="_blank">Reference</a>)
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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 **IPSec** 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. Leave the **Group Name** field blank.
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1. Tap **Secret** and enter `Your VPN IPsec PSK`.
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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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## Credits
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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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