Let BitTorrent works on Ubuntu with Azureus Client.

1. Set Local ASDL Router to allow NAT
    Access 192.168.0.1 or something
2. Let Ubuntu to allow the port Azureus uses.
#iptables -I INPUT -p tcp --dport 57656 -j ACCEPT
#iptables -I INPUT -p udp --dport 57656 -j ACCEPT