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UDP Broadcast Packet Relay
This program listens for packets on a specified UDP broadcast port.
When a packet is received, it sends that packet to all specified
interfaces but the one it came from as though it originated from the
original sender.
The primary purpose of this is to allow games on machines on separated
local networks (Ethernet, WLAN) that use udp broadcasts to find each
other to do so.
It also works on ppp links, so you can log in from windows boxes (e.g.
using pptp) and play LAN-based games together. Currently, you have to
care about upcoming or downgoing interfaces yourself.
INSTALL
make ; cp udp-broadcast-relay /some/where
USAGE
/some/where/udp-broadcast-relay id udp-port eth0 eth1...
udp-broadcast-relay must be run as boot to be able to create a raw
socket (necessary) to send packets as though they originated from the
original sender.
COMPATIBILITY
* I run debian woody with Linux 2.4.20, and here it works.
EXAMPLE
/some/where/udp-broadcast-relay -f 1 6112 eth0 eth1 # forward Warcraft
3 broadcast packets
BUGS/CRITICISM/PATCHES/ETC
web
http://www.joachim-breitner.de/udp_broadcast_relay/
e-mail
Joachim Breitner <mail@joachim-breitner.de>
HISTORY
0.3 2003-09-28
Sending packets also to ppp addresses
0.2 2003-09-18
Flags for debugging and forking, Compilefixes, Makefile-Target
"clean"
0.1 2003-09-15
Initial rewrite of udp_broadcast_fw
CREDITS
This is based upon udp_broadcast_fw:
Web: http://www.serverquery.com/udp_broadcast_fw/
Email: Nathan O'Sullivan
HISTORY of udp_broadcast_fw
0.1.1 - 19 Feb 02
Moved fork() code to just before main loop so that errors would
appear
0.1 - 18 Feb 02
Initial release
LICENSE
This code is made available under the GPL. Read the COPYING file
inside the archive for more info.
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