WR3000 4-Port Wireless DSL/Cable Router

11.4.2 Types of DoS Attacks - Continued

Under normal circumstances, the application that initiates a session sends a SYN (synchronize) packet to the receiving server. The receiver sends back an ACK (acknowledgment) packet and its own SYN, and then the initiator responds with an ACK (acknowledgment). After this handshake, a connection is established.

2.a) A SYN Attack ﬂ oods a targeted system with a series of SYN packets. Each packet causes the targeted system to issue a SYN-ACK response. While the targeted system waits for the ACK that follows the SYN-ACK, it queues up all outstanding SYN-ACK responses on what is known as a backlog queue. SYN-ACKs are moved off the queue only when an ACK comes back or when an internal timer (which is set at relatively long intervals) terminates the three-way handshake. Once the queue is full, the system will ignore all incoming SYN requests, making the system unavailable for legitimate users.

2.b) In a LAND Attack, hackers ﬂ ood SYN packets into the network with a spoofed source IP address of the targeted system. This makes it appear as if the host computer sent the packets to itself, making the system unavailable while the target system tries to respond to itself.

3.A brute-force attack, such as a “Smurf’ attack, targets a feature in the IP speciﬁ cation known as directed or subnet broadcasting, to quickly ﬂ ood the target network with useless data. A Smurf hacker ﬂ oods a router with Internet Control Message Protocol (ICMP) echo request packets (pings). Since the destination IP address of each packet is the broadcast address of the network, the router will broadcast the ICMP echo request packet to all hosts on the network.

If there are numerous hosts, this will create a large

amount of ICMP echo request and response trafﬁ c. If a hacker chooses to spoof the source IP address of the ICMP echo request packet, the resulting ICMP trafﬁ c will not only clog up the “intermediary” network, but will also congest the network of the spoofed source IP address, known as the “victim” network.

This ﬂ ood of broadcast trafﬁ c consumes all available bandwidth, making communications impossible.

WR3000 specifications

The ParkerVision WR3000 is a cutting-edge wireless communication solution designed for high-performance applications that demand reliability and efficiency. At the heart of the WR3000's design is the innovative use of ParkerVision's proprietary technologies, which allow for enhanced transmission capabilities over traditional wireless methods.

One of the standout features of the WR3000 is its advanced modulation technique, which significantly increases data throughput while minimizing error rates. This technology enables the WR3000 to transmit data at high speeds, making it an ideal choice for applications such as video streaming, online gaming, and other bandwidth-intensive services. Users can expect seamless connectivity and a robust performance even in challenging environments.

In addition to its impressive data transmission capabilities, the WR3000 is equipped with smart antenna technology. This feature optimizes signal reception and transmission directionality, leading to improved performance and reduced interference. The adaptability of the WR3000's antennas allows it to maintain consistent connectivity regardless of user movement or changes in the surrounding environment.

The WR3000 also supports a range of communication standards, making it highly versatile for various applications. Its compatibility with both legacy and modern systems ensures a broad user base can integrate this technology into their existing infrastructure without incurring extensive additional costs.

Furthermore, the device is engineered with energy efficiency in mind. Its design minimizes power consumption without sacrificing performance, making it not only cost-effective but also environmentally friendly. This is particularly important in today’s world, where sustainability has become a crucial consideration for both consumers and businesses.

The ParkerVision WR3000 is also remarkably easy to install and configure, boasting a user-friendly interface that simplifies setup processes. This allows users, even those with limited technical expertise, to quickly get up and running, facilitating broader adoption across different sectors.

Lastly, ParkerVision's commitment to customer support ensures that users have access to resources and assistance post-purchase, enhancing the overall user experience. Whether for residential, commercial, or industrial applications, the WR3000 stands out as a powerful wireless communication solution that combines high performance, advanced technology, and user-friendliness in one compact package.

ParkerVision manual WR3000 4-Port Wireless DSL/Cable Router

Models: WR3000