CCNP SWITCH and GNS3 – part 2.3 LAB - Configuring User AAA authentication and 802.1X port-based authentication

Scenario You start your new carrier as a network professional in company which is responsible for prepare, plan, design and implementation phase of AAA user authentication and 8021.x port-based authentication in customer network. Because you are new in the team you need to prove your boss that you has sufficient knowledge to participate in Implementation […]
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CCNP SWITCH 642-813 and GNS3 - part 1 Introduction

Introduction If you want to become a Cisco Certified Network Professional engineer you need to prove  the ability to plan, implement, verify and troubleshoot local and wide-area enterprise networks Your ability is tested with these three Cisco exams: 642-902 ROUTE Implementing Cisco IP Routing (ROUTE) 642-813 SWITCH Implementing Cisco IP switched Networks (SWITCH) 642-832 TSHOOT […]
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MAC address flooding attack in campus network

Theory Hub is a network device which forwards Ethernet received frames to all the ports except the port on which hub previously received frames. This is not very secured method because traffic is send to every port and could be captured by attacker. Unlike hub switch can forward traffic according to destination MAC address in […]
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