This is a small hack I did to remote control my Onkyo TX-NR609. I re-used code from Simon Aldrich's blog at http://simon.aldrich.eu/blog/tag/iscp/
I wrapped the stuff in a small Qt dialog. Now I don't need to get out of bed to adjust the volume any more \o/
mkdir build
cd build
cmake ..
make
./OnkyoRemote
On a Fedora machine
sudo iptables -I INPUT -p udp --dport 60128 -j ACCEPT
sudo service iptables save