Ragnarok Online’s architecture uses multiple separate servers. TCP-Shield proxies all required ports simultaneously — up to 30 ports per configuration.
GeoIP Blocking
Attacks spike during War of Emperium and major events. Our AI monitoring detects the surge in connection attempts and tightens defenses automatically.
Real IP Passthrough
Limit how many new connections per second a single IP can open. Attackers using thousands of connections per second are stopped instantly.
Per-IP Rate Limiting
TCP-Shield uses proxy protocol to pass real player IPs to your server. Your GM commands, IP bans, and logging all continue working normally.