The OpenVPN 2.6.15 release brings back support for explicitly configuring the broadcast address on Linux systems, on interfaces where applicable. This feature was removed from the OpenVPN 2.6 series because “computers are smart and can do it themselves”. In reality, the kernel netlink interface isn’t that smart, and it actually installed “0.0.0.0” as the IP address, breaking functionality for broadcast-based applications that get their IP address from the ifconfig command. Therefore, this change fixes issues with broadcast-based apps that didn’t work with OpenVPN 2.6.
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