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Layer 4 Methods

Layer 4 Methods (Transport / L4)

Authorized testing only. The following methods are implemented at the transport or network layer (L4) and are designed for controlled resilience assessments, stress simulations, and network performance evaluation within approved environments. Each technique has a specific behavior pattern and network protocol focus.

DNS

The DNS method emulates high-intensity name-resolution traffic to evaluate how DNS infrastructure handles repetitive or malformed queries. It reflects amplification-style load generation patterns and helps measure resolver stability and caching performance in distributed systems.

NTP

Simulates large volumes of time-synchronization (NTP) requests to examine how a service or device reacts under rapid packet sequences on port 123/UDP. Useful for assessing filtering, rate-limiting, and time-sync resilience under constrained conditions.

MIXAMP

Represents a blended amplification scenario combining several UDP-based reflection vectors (DNS, NTP, and similar). It provides a mixed-protocol load useful for analyzing firewall heuristics and adaptive mitigation layers.

FIVEM

Generates UDP traffic following patterns typical for FiveM or similar gaming network backends. It is mainly used to test service routing efficiency and packet handling for latency-sensitive UDP applications.

FREE-DNS

A simplified public variant of DNS query load generation. Designed to check response handling for unauthenticated or open-resolver setups, ensuring that systems correctly limit external recursion.

ACK

The ACK method sends acknowledgment-flagged TCP segments to measure how endpoints and firewalls treat unsolicited responses. It is valuable for testing session-tracking logic and TCP state-table capacity under stress.

SYN

Issues a controlled sequence of TCP-SYN packets, replicating initial handshake attempts. It allows engineers to analyze connection-handling performance and backlog queue behavior when the system faces an excessive rate of new connection initiations.

TCPTFO

Tests TCP Fast Open capability by generating session initiations that reuse cookies to shorten handshakes. It assists in evaluating how well middleware and proxies support TFO optimizations under load.

TCP-WARP (Premium)

A premium TCP traffic model tuned for environments that use edge networks or content-delivery networks (CDNs). It focuses on measuring the routing and filtering efficiency of multi-hop TCP connections while simulating modern bypass-optimized packet patterns.

OVH

Specialized TCP model designed for infrastructures protected by enterprise-grade firewalling (such as OVH). It helps test whether connection limits, SYN cookies, and rate policies remain stable when handling repetitive socket initiations.

UDP (Premium)

High-performance raw UDP transmission model that evaluates how systems process large packet rates without session control. It assists in tuning kernel network stacks, load balancers, and rate-limiting mechanisms.

GAME (Premium)

UDP-based model reflecting typical interactive game traffic with moderate packet frequency and latency-sensitive timing. Designed to verify QoS prioritization and edge routing for multiplayer or real-time services.

TS3 (Premium)

Simulates TeamSpeak 3 query and voice control packets to test UDP handling for small interactive protocols. It helps identify configuration weaknesses in query interfaces and UDP routing layers.

RAKNET

Emulates RakNet (used by certain games and embedded systems) to observe connection-establishment routines, ensuring correct handling of non-standard UDP handshake sequences.

UDPBYPASS

Focused on raw throughput evaluation with minimal payload overhead. It measures how routers and servers handle exceptionally high packets-per-second (pps) rates without session state.

TCPBYPASS

TCP traffic generator optimized for sustained high-rate scenarios. It’s intended for testing how deep-packet inspection, mitigation appliances, and load balancers maintain performance under aggressive socket creation.

DISCORD (Premium)

UDP simulation tailored for signaling and heartbeat patterns used in communication or VoIP applications. Valuable for evaluating packet pacing, jitter handling, and message-queue stability in real-time systems.

Quick Notes

The Layer 4 catalogue combines both raw and protocol-aware models intended for safe, permission-based network-resilience testing. Engineers can analyze transport-layer limits, state-table utilization, and congestion behavior using the summarized patterns above. Always ensure tests are authorized and compliant with your organization’s security policy.

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