Installing OpenVPN Client 2.6.6 on iPhone: A Step-by-Step Guide

If you're looking to secure your online connections using a Virtual Private Network (VPN), OpenVPN is an excellent option. However, configuring it can be a bit tricky, especially when dealing with firewalls that export deprecated options like 'cipher'. In this article, we'll explore how to install OpenVPN Client 2.6.6 on your iPhone and overcome common issues related to cipher negotiations.

Many firewalls, such as Watchguard Firebox, still export the 'cipher' option despite its deprecation. You might encounter problems when trying to connect to a server that uses a specific cipher. To resolve this issue, you need to add the desired cipher (e.g., 'AES-256-CBC') to the '-data-ciphers' setting.

Here's an example of how to do this:

1. Open your iPhone's Settings app.

2. Scroll down and select 'General'.

3. Tap on 'VPN' and then choose 'Add VPN Configuration'.

4. Select 'OpenVPN' as your VPN type.

5. Enter the server information, including the address, port number, username, and password.

6. In the ' Cipher' field, enter the desired cipher (e.g., 'AES-256-CBC').

7. Go back to the main menu and tap on 'Data Ciphers'. Here, you can specify multiple ciphers, separated by colons (e.g., 'AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305').

After setting up your OpenVPN configuration, try connecting to the server. If you encounter an error message indicating that the cipher is deprecated, follow these steps:

1. Go back to your OpenVPN settings and tap on 'Options'.

2. In the 'OPTIONS' field, add the following line: `-data-ciphers AES-256-CBC`

3. Save your changes.

When you reconnect to the server, you should be able to establish a secure connection using the specified cipher.

Common Issues with Cipher Negotiations

If you're still experiencing issues with cipher negotiations, you might encounter an error message indicating that OpenVPN ignores the '-cipher' option for cipher negotiations. This is because OpenVPN has deprecated the '-cipher' option and recommends using '-data-ciphers' instead.

To resolve this issue, you can try the following:

1. Remove any '-cipher' settings from your OpenVPN configuration.

2. Add the desired cipher to the '-data-ciphers' setting (e.g., 'AES-256-CBC').

3. Save your changes and reconnect to the server.

In conclusion, installing OpenVPN Client 2.6.6 on your iPhone requires some configuration tweaks, especially when dealing with deprecated options like 'cipher'. By following these steps and adding the desired cipher to the '-data-ciphers' setting, you should be able to establish a secure connection using OpenVPN.

For iphone instal OpenVPN Client 2.6.6