We continue our studies of the topics in the Security Fundamentals section of the CCNA exam blueprint. This lesson covers DHCP snooping configuration and verification on Cisco devices. DHCP snooping is covered in exam topic 5.7, which says you must be able to “Configure Layer 2 security features (DHCP snooping, dynamic ARP inspection, and port […]
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In this lesson we continue our studies of the topics in the Security Fundamentals section of the CCNA exam blueprint. This lesson covers switch port security configuration and verification. Port security is a security feature of Cisco switches that allows you to control what source MAC addresses are allowed to enter a switchport. Port security
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These CCNA study notes cover a big chunk of the topics listed in Section 5 Security Fundamentals of the CCNA exam blueprint – specifically, subsections 5.1 Define key security concepts (threats, vulnerabilities, exploits, and mitigation techniques), 5.2 Describe security program elements (user awareness, training, and physical access control), 5.4 Describe security password policies elements, such
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This lesson covers two Layer 2 discovery protocols, CDP (Cisco Discovery Protocol) and LLDP (Link Layer Discovery Protocol). CDP and LLDP configuration and verification are covered in topic 2.3 of the CCNA exam blueprint, which says you must be able to configure and verify Layer 2 discovery protocols CDP and LLDP. First, Layer 2 discovery
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This is Part 3 of 3 of my study notes for IPv6 for the CCNA. In Part 1, Introduction to IPv6 for the CCNA, we learned how to do some basic IPv6 router configurations – how to enable IPv6 routing on routers, and how to configure an IPv6 address on the router interface. In Part
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This is Part 2 of 3 of my IPv6 study notes for the CCNA. In this lesson, Configuring IPv6 addresses using EUI-64, we continue our studies of IPv6 for the CCNA. In Part 1, Introduction to IPv6 for the CCNA, we learned how to do some basic IPv6 router configurations – how to enable IPv6
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This lesson is an introduction to IPv6 for the CCNA. This is Part 1 of 3 of IPv6 study notes for the CCNA exam. The lesson begins with a review of the hexadecimal number system to help us understand the structure of an IPv6 address. We then discuss why we need IPv6. We then explore
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This lesson covers RIP & EIGRP function and configuration. Routing Information Protocol (RIP) and Enhanced Interior Gateway Routing Protocol (EIGRP) are both distance vector interior gateway protocols. The previous lesson, Types of dynamic routing protocols, introduced dynamic routing protocols types, algorithms, and metrics. Dynamic routing involves configuring a dynamic routing protocol on a router, whereas
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This lesson kicks off a series of lessons on dynamic routing. This lesson introduces dynamic routing protocols types, algorithms, and metrics. The lesson on routing fundamentals covered connected and local routes – these are automatically added in the routing table when you configure IP addresses on router interfaces. The lesson on static routing introduced static
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In this lesson we learn how to configure static routes in the CLI of Cisco routers. Static routing is a very important topic in computer networking and for the CCNA. In the previous lesson, Connected and local routes, we looked at the basics of routing, how routers decide where to forward packets. We explored two
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