Since kids with Sprut etc appears to be a huge problem within sro scene now, wrote this little, but still, pretty useful tool to prevent simple DoS attacks from single, or few machines.
This allows you to set connections limit per IP (Established/SynSent states).
Adds rules to windows advanced firewall, means, it has to be enabled.
Your local/public/gateway ip addrs should be put into allowedIPs.txt
Default values:
max conns = 10
refresh time = 1
Link:
http://ebx7.us.to/dl/simpleFw_1.0.rar [v1.0]
Requires .NET framework v4.0 and Administrator privileges.