Tutorial (Legacy): Switching Between Layer 3 Routing and Layer 2 Bridging⁠

Overview⁠

Layer 2 bridging mode should only be used in rare cases, typically with on-premise hardware.

An installed Access Server.
Note
Your Access Server is running on a platform that supports Ethernet Bridging (OpenVZ, Docker, LXD, and other container-based platforms aren't supported).
Console access and the ability to get root access. We recommend ensuring physical access to the Access Server host, as network access may become unavailable in the event of a misconfiguration.
An understanding of the OSI layer model.
An OpenVPN client that supports TAP Ethernet Bridging functionality.
Note
OpenVPN 3 clients (such as OpenVPN Connect for Windows, macOS, iOS, and Android) aren't supported. Use OpenVPN v2 community clients instead.
Doesn't use multi-daemon mode (set to one TCP and one UDP daemon under Network Settings).
Understanding that this is a legacy setup with limited support.

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