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layer 2 attack

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TechRepublic Resources

Mitigate Layer 2 attacks against VLANs
Learn about the most common types of Layer 2 attacks and mitigation strategies. This information, including practice questions, will help you prepare for the CCSP SNRS exam.This sample chapter, taken from CCSP SNRS Exam Certification Guide (CCSP Self-Study), covers common Layer 2 attacks and various mitigation techniques.Title: CCSP SNRS Exam...
Tags: attack, Cisco Systems Inc., exam, Layer 2, Layer 2 attack, strategy, technique, VLAN
Download resources 2006-01-11

Additional Resources

CARE: Enhancing Denial-of-Service Resilience in Mobile Ad Hoc Networks
This paper proposes an attack-resilient routing architecture, called Cross-layer Active RE-routing CARE, for Mobile Ad hoc NETworks MANETs. Different from existing solutions, CARE does not focus on a particular type of attack, but instead takes a fundamentally general approach - it achieves resilience against a wide range of routing disruption...
Tags: Denial Of Service, Virginia Polytechnic Institute, Mobile, Network, Attack, Security, Networking
White papers 2006-07-28
Check Point Multi-Layer Security: Attack Prevention Safeguards and Attacks Blocked
Check Point gateways, including VPN-1, FireWall-1, InterSpect, and Connectra, with SmartDefense, Application Intelligence and Web Intelligence protection enabled block many attacks and provide numerous attack prevention safeguards. This paper lists some of these defenses and organizes them by protocol and OSI model layer. Check Point continually expands the breadth of...
Tags: Check Point Software Technologies Ltd., Attack, Security
White papers 2005-05-09
A Key Recovery Attack on the 802.11b Wired Equivalent Privacy Protocol (WEP)
This paper presents a practical key recovery attack on WEP, the link-layer security protocol for 802.11b wireless networks. The attack is based on a partial key exposure vulnerability in the RC4 stream cipher discovered by Fluhrer, Mantin, and Shamir. This paper describes how to apply this aw to breaking WEP,...
Tags: IEEE 802.11, WEP, Attack, Wi-Fi, Wireless, Network Security, Wireless LANs, Security, Networking
White papers
Defend the network layer from malicious attack
The network layer is key to the operation of the stack. In this sample chapter from Hack the Stack: Using Snort and Ethereal to Master the 8 Layers of an Insecure Network, begin by reviewing the protocols that reside here, such as Internet Protocol IP, Internet Control...
Tags: Snort, Network, Malicious Attack, Syngress, Chapter Coverage, Networking
Book chapters 2007-06-22
What is the difference between a Layer 3 Switch and a Layer 3-aware switch
Can anyone tell me exactly what a layer 3-aware switch is? My company currently has Dell Powerconnect 3424 switches, the specs say they are layer 2 and layer 3-aware switches. This leads me to believe that they are not truely a layer 3 switch but i can't find any specific...
Tags: Layer 3, aware switch
Discussion threads 2008-01-16
Mac Crack Attack 1.1.3 (Mac)
Mac Crack Attack is a port of Crack Attack to the Mac OS X platform. Crack Attack is based on the Super Nintendo classic Tetris Attack. Mac Crack Attack is a fast paced "Tetris-like" game for one or two players. Mac Crack Attack was selected as "Game of...
Tags: Apple Macintosh, Attack, Daniel Aarno, Mac Crack Attack, Crack Attack, Desktops, Hardware
Software downloads 2005-12-28
Layer 3 Switching
This document is a map through the jungle of internetworking infrastructure, particularly focusing on how Layer 2 switching and Layer 3 routing have combined to form the powerful Layer 3 switching architecture. The document analyzes Layer 3 switching from both functional as well as an operational perspective, helping...
Tags: Layer 3
White papers 1998-05-01
Multi-Layer Switching Demystified
Multi-layer switching can be a confusing concept for students taking Cisco courses, and is only complicated further by more new terms arising, such as layer-3 and layer-4 switching. KnowledgeNet Instructor Jeremy Cioara employs concrete analogies to fully explain the concept of Cisco multi-layer switching in this article. "What is...
Tags: KnowledgeNet, Cisco Systems Inc., KnowledgeNet Instructor Jeremy Cioara
White papers 2001-08-01
Layer 3 Switching: An Introduction
This paper is a map through the jungle of internetworking infrastructure, particularly focusing on how Layer 2 switching and Layer 3 routing have combined to form the powerful Layer 3 switching architecture. The paper analyzes Layer 3 switching from both a functional and an operational perspective, helping the reader make...
Tags: Layer 3
White papers 1998-05-01
Application-Layer Security: What It Takes to Enable the Next Generation of Security Services
In today's world of increasingly sophisticated cyber attacks, application-layer security threats are top of mind with many network administrators, security consultants and CIOs. The loss of network and application access can cost enterprises dearly in lost revenue and employee productivity. The security infrastructure must address the new wave of application-layer...
Tags: Nortel Networks Corp., Security
White papers 2005-01-13
Easy Guard Server Protector 2.0 (Windows)
Easy Guard Protection Web Edition is the only Web application firewall technology to provide complete protection for the entire Web environment. It provide multi-layer defense for the network, operating systems, Web servers, and backend systems which features quick deployment, simple management, and-best of all-the strongest protection for your entire Web...
Tags: Attack, Easy Guard, Easy Guard Protection Web Edition, Microsoft Windows, Firewalls, Security, Intrusion Prevention, Operating Systems, Software, Networking
Software downloads 2004-10-09
Virtualizing device drivers?
I'm going to try and ask this as best I can. I have two devices that perform a similar function that I attach to my laptop. I never have need to connect them at the same time but I do have need to have them both attached at different times.I...
Tags: device driver
Discussion threads 2008-10-27
OSI Layer-2 Encryption: Security goes one layer deeper
Ethernet Layer 2 EncryptionI find it hard to believe this article firstly has no posts, and secondly doesn't recognise Senetas. Senetas is a pure Layer 2 vendor, who provides Layer 2 encryption hardware to SafeNet, nCipher and Thales.Senetas has Layer 2 encryptors for ATM, Sonet/SDH and Ethernet, ans all...
Tags: Network technology, NETWORKING, OSI, security, andrew.younger@..., Senetas, Ethernet, Layer 2
Discussion threads 2007-09-13
SAMInside 2.5.2 (Windows)
Fastest recovery of Windows NT/2000/XP/2003 users' passwords. Brute-force attack; mask attack; dictionary attack; pre-calculated tables attack; import from LC, LCP, LCS, HDT, LMNT.LST, PWDUMP files; and import local hashes.
Tags: Attack, InsidePro, Microsoft Windows, Security, Operating Systems, Software
Software downloads 2006-01-12
SAMInside 2.6.3.0 (Windows)
Fastest recovery of Windows NT/2000/XP/2003 users' passwords! Brute-force attack; mask attack; dictionary attack; pre-calculated tables attack; import from LC, LCP, LCS, HDT, LMNT.LST, PWDUMP files; import local hashes, etc.
Tags: Attack, KSY Software, Microsoft Windows, Security, Operating Systems, Software
Software downloads 2008-04-21
MPLS VPNs: Layer 2 or Layer 3? Understanding the Choice
Since there's been data networking, there's been a debate between switched and routed architectures - stated in OSI terms, between performing functions at Layer 3 or Layer 2. Today, we see it again surfacing as network architects consider the design of Virtual Private Networks VPNs that take advantage of Multi-Protocol...
Tags: MPLS VPN, Layer 2, Layer 3, MPLS, VPNs, Networking, Network Security, Telecommunications
White papers 2002-07-05
Implementing Network Management on ATM Interfaces
This paper provides a single reference on how to gather network management data on an ATM interface through the use of Simple Network Management Protocol SNMP. It focuses specifically on Cisco router ATM interfaces. ATM comprises a three-layer stack: an ATM Adaptation Layer AAL, an ATM layer, and a physical...
Tags: Network, Network Management, ATM, Network Technology, Networking
White papers 2005-10-19
Providing Multi-Layer Security Support for Wireless Communications Across Multiple Trusted Domains
Recently many link layer security protocols have been developed and deployed to protect the wireless communications in local area networks. However, cryptanalysis has revealed lots of insecurities and vulnerabilities of the link layer protocols. This paper studies a multi-layer alternative. Compared to a link layer approach, the multi-layer architecture provides...
Tags: Wireless Communication, Domain, Wi-Fi, Wireless, Security
White papers
A Divide-and-Conquer Strategy for Thwarting Distributed Denial-of-Service Attacks
Attack mitigation schemes actively throttle attack traffic generated in Distributed Denial-of-Service DDoS attacks. This paper presents Attack Diagnosis AD, a novel attack mitigation scheme that adopts a divide-and-conquer strategy. AD combines the concepts of Pushback and packet marking, and its architecture is in line with the ideal DDoS attack countermeasure...
Tags: Virginia Polytechnic Institute, Packet, Distributed Denial Of Service, Attack, Attack Diagnosis, Security
White papers 2006-07-03
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