March 10

DDoS L3 and L4 attack methods

L3 attacks focus on disrupting network infrastructure, while L4 attacks target weaknesses in TCP and UDP protocols. L3 methods include ICMP flooding, UDP flooding, IP fragmentation, SYN flooding, ACK flooding, Ping-of-death, Smurf attacks, Reflected DNS attacks, DNS Amplification attacks, and NTP attacks. L4 methods involve exploiting TCP and UDP protocols, causing network overload and unavailability.

DDoS attacks and network infrastructure

DDoS attacks involve overwhelming a target system with traffic, causing a denial of service to users. Network infrastructure, including Layer 3 and Layer 4 of the OSI model, plays a crucial role in DDoS attacks. Layer 3 is responsible for packet forwarding and routing, while Layer 4 ensures proper data transmission. Attacks such as IP/ICMP Fragmentation and TCP SYN Flood exploit these layers. To protect your network, understand various attack types, including L4 transport layer and L3 network layer DDoS attacks.

Network Layer L3: DDoS Attack Methods

The network layer, or Layer 3, is responsible for packet forwarding, including routing through different networks and IP addressing. DDoS attacks at this layer could involve IP/ICMP Fragmentation, which can consume resources on the target system and cause disruption. L3 DDoS attacks focus on disrupting network infrastructure by overwhelming routers, switches, and other networking devices with a high volume of traffic. Techniques such as ICMP Floods, UDP Floods, and IP Fragmentation attacks are commonly used to flood the target network with packets, causing congestion and potentially rendering it inaccessible.

The main methods of DDoS attacks at the L3 network layer include:

  • ICMP flooding: This method uses the ICMP protocol (Internet Control Message Protocol) to create a large number of ICMP responses (echo requests or responses) that are sent to the target system. This causes congestion and can lead to crash or unavailability.
  • UDP flooding: This is when the User Datagram Protocol (UDP) is used to send a large number of UDP packets to the target system. These packets may be incomplete or incomplete, which can also cause congestion and lead to unavailability of the target system.
  • IP Fragmentation attacks: This method involves sending a large number of IP packets that are intentionally fragmented, which can cause congestion and overwhelm the target system's resources.

DDoS attacks at the network layer can be particularly disruptive and challenging to mitigate, as they target critical infrastructure and can impact the availability and performance of entire networks.

Network Layer L4: DDoS attack Methods

DDoS attacks at the Transport Layer L4 are one of the main threats to the stable operation of network infrastructures. These attacks target weaknesses in the TCP and UDP protocols that are used to exchange data between devices on a network. As a result of L4 attacks, communication between devices can be disrupted and quality of service can be degraded. To protect your network infrastructure, you need to understand the intricacies of an L4 Transport Layer DDoS attack. The main methods of DDoS attacks at the L4 Layer include:

  • SYN flooding: This method utilizes the Transmission Control Protocol (TCP) to create a large number of synchronous requests to the target system. As a result, the target system is forced to respond to these requests, which causes congestion and can lead to crash or unavailability.
  • ACK flooding: This also uses the TCP protocol, but the attacker sends a large number of packets with the ACK (acknowledgement) flag to the target system. This can lead to congestion and unreachability.
  • RST flooding: This method uses the TCP protocol to send a large number of packets with the RST (reset) flag to the target system. This causes connections to be closed and can lead to congestion and unavailability.
  • FIN flooding: In this case, the attacker sends a large number of packets with the FIN (end) flag to the target system. This causes connections to be closed and can lead to congestion and unavailability.
  • PUSH flooding: This method uses the TCP protocol to send a large number of packets with the PUSH (send) flag to the target system. This can cause congestion and unavailability. L4 attack methods can lead to exhaustion of system resources, disruption of communication and degradation of quality of service.

Use IP-Stresser by applying L3 and L4 methods

Each method has a different approach, but all of them flood the target network with data packets until it stops functioning. You can use our free IP-Stresser at any time of the day or night as you see fit. MAXSTRESSER network attacks easily get through any defense using IP spoofing technology with maximum performance. Demonstrate your excellence with MAXSTRESSER, join our online IP testing tool and get access to advanced DDoS attack tools!