Game Server DDoS Filter Selection Guide (Path.net)

Introduction

REXE Technology offers game-specific DDoS filters through the Path.net infrastructure. These filters analyze traffic specific to game protocols, allowing legitimate player connections while blocking attack traffic.

Supported Game Filters

Arma / DayZ

This filter recognizes Arma/DayZ protocol-specific packets, blocking spoofed query packets and UDP flood attacks.

HL2 / Source Engine

HLDS / GoldSrc

L4D2 / CS:GO

Grand Theft Auto (SA-MP / FiveM)

Source Engine Queries

Comprehensive filter for all games using the Source Engine query protocol: CS 1.6, TF2, Garry's Mod, Rust, ARK: Survival Evolved, and all HL1/HL2 based games.

This filter validates A2S_INFO and A2S_PLAYER Source Engine query packets, blocking spoofed queries.

RakNet

Minecraft Java Edition

This filter validates Minecraft protocol handshake and login packets, blocking bot attacks and TCP floods.

Filter Selection Table

Not sure which filter to use? Reference this table:

How to Apply Filters

1. Log in to Path Panel (my.rexe.tr → Path Panel)
2. Click on your server IP in IP Management
3. Click Create New Rule
4. Fill in the details:

Protocol: UDP (or TCP, depending on game)
Destination Port: Game's default port
Filter: Select the appropriate game filter
Comment: Descriptive note like "FiveM game filter"

5. Save and wait for propagated status (2-5 min)

How Game Filters Work

Path.net game filters learn the packet structure of each game protocol. For example:

• Minecraft filter: Validates the handshake packet sent by a real Minecraft client. Bot attacks cannot pass this validation.
• Source Engine filter: Validates A2S_INFO queries. Spoofed query floods are blocked.
• FiveM filter: Recognizes packets specific to the GTA V multiplayer protocol.

This ensures your players experience no interruption while attackers cannot reach your server.

Frequently Asked Questions

My game is not in the list, what should I do?

For games not in the list, you can use a general TCP or UDP filter. If you need a custom filter, contact our support team to request one for your specific game.

Can multiple games run on the same server?

Yes, by creating separate rules for each game port, you can protect multiple game servers on the same IP address.

Do game filters affect performance?

No, Path.net filters operate at the hardware level and add no measurable latency to game traffic. Your players continue playing without interruption while attack traffic is automatically cleaned.

How long does it take for a filter rule to become active?

After creating a rule, it takes 2-5 minutes to reach the propagated status and become fully active across all network points.