detourbrd

Detour UDP broadcast packages to a specific network interface using iptables. Useful for playing LAN games over VPN which discover servers via UDP broadcast. Requires ipcalc to be installed.

Install

# make install # make uninstall

Examples

Route broadcast packages to specific interface

# detourbrd tap0 1500 1656 192.168.10.2 255.255.255.0 init

Reset detour: # detourbrd reset

Integrate into OpenVPN configuration for automatic setup

/etc/openvpn/client/example.conf

# ...
# Automatic UDP broadcast detour
up "/usr/local/bin/detourbrd"
down "/usr/local/bin/detourbrd reset"

down-pre
script-security 2
# ...