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OpenVPN Cookbook

You're reading from   OpenVPN Cookbook Get the most out of OpenVPN by exploring it's advanced features.

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Product type Paperback
Published in Feb 2017
Publisher
ISBN-13 9781786463128
Length 400 pages
Edition 2nd Edition
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Concepts
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Author (1):
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Jan Just Keijser Jan Just Keijser
Author Profile Icon Jan Just Keijser
Jan Just Keijser
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Table of Contents (11) Chapters Close

Preface 1. Point-to-Point Networks FREE CHAPTER 2. Client-server IP-only Networks 3. Client-server Ethernet-style Networks 4. PKI, Certificates, and OpenSSL 5. Scripting and Plugins 6. Troubleshooting OpenVPN - Configurations 7. Troubleshooting OpenVPN - Routing 8. Performance Tuning 9. OS Integration 10. Advanced Configuration

Checking broadcast and non-IP traffic


The main reason for a bridged setup is to create a single broadcast domain for all the clients connected, both via the VPN and via a regular network connection.

Another reason is the ability to route or forward non-IP based traffic, such as the older Novell IPX and Appletalk protocols.

This recipe focuses on the use of tools such as tcpdump and wireshark to detect whether the broadcast domain is functioning and if non-IP traffic is flowing in the correct manner.

Getting ready

For this recipe, we use the setup from the Bridging - Linux recipe of this chapter. We use the following network layout:

For this recipe, the server computer was running CentOS 6 Linux and OpenVPN 2.3.9. For the server, keep the server configuration file example3-3-server.conf from the Bridging - Linux recipe ready. The first client computer was running Windows 7 64 bit and OpenVPN 2.3.10 and was in the same LAN segment as the OpenVPN server. The second client was running Windows XP...

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