In Cisco IOS devices, Layer 2 security features refer to security measures that are applied at the data link layer (layer 2) of the OSI model. Some common Layer 2 security features include:<\/p>\n
Port security:<\/strong> This feature allows you to restrict the number of MAC addresses that can be learned on a specific switch port.<\/p>\n Dynamic ARP<\/strong> inspection (DAI): This feature protects against ARP spoofing attacks by inspecting ARP packets and verifying their authenticity.<\/p>\n 802.1X authentication:<\/strong> This feature uses the 802.1X standard to authenticate devices connecting to the network.<\/p>\n MAC address filtering:<\/strong> This feature allows you to specify a list of MAC addresses that are authorized to access the network on a specific switch port.<\/p>\n Spanning Tree Protocol (STP) security:<\/strong> This feature helps to prevent unauthorized changes to the network topology and protects against looping in the network.<\/p>\n DHCP snooping:<\/strong> This feature helps to prevent rogue DHCP servers from being introduced into the network.<\/p>\n Link Aggregation Control Protocol (LACP) security:<\/strong> This\u00a0 feature helps to prevent unauthorized links from being aggregated.<\/p>\n These features help to increase the security and stability of a network, and are essential for protecting the network from security threats.<\/p>\n For additional info and configuration of these security features check this article<\/p>\n Layer 2 security features in IOS devices<\/a><\/p>\n Please check this\u00a0Network Simulator w\/ Designer for CCNA<\/a> , provides a virtual lab environment where a router\/switch network can be simulated.<\/p>\n Several lab exercises with scenario type labs have been provided for hands-on practice. Router and switch IOS simulator for ease of learning Cisco router\/switch commands. Design your own labs using any number of switches and routers.<\/p>\n The labs are intended to give familiarity with the router or switch commands.\u00a0Example labs can be viewed here.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" In Cisco IOS devices, Layer 2 security features refer to security measures that are applied at the data link layer (layer 2) of the OSI model. Some common Layer 2 security features include: Port security: This feature allows you to restrict the number of MAC addresses that can be learned on a specific switch port. Dynamic ARP inspection (DAI): This… Read more »<\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,1],"tags":[],"class_list":["post-1253","post","type-post","status-publish","format-standard","hentry","category-netsims","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/posts\/1253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/comments?post=1253"}],"version-history":[{"count":3,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/posts\/1253\/revisions"}],"predecessor-version":[{"id":1256,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/posts\/1253\/revisions\/1256"}],"wp:attachment":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/media?parent=1253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/categories?post=1253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/tags?post=1253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}