Types of ACLs in Networking: Standard, Extended, Named and More
The main types of ACLs in networking explained: standard, extended and named ACLs, plus time-based, reflexive and IPv6 ACLs, with Cisco syntax.
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July 19, 2022
Access Control List (ACL) in Networking: How ACLs Filter Traffic
Access control list in networking explained: how ACLs work, how routers process them, wildcard masks, inbound vs outbound, rules and verification.
July 19, 2022
What Is EIGRP? How It Works, Packet Types and Cisco Configuration
EIGRP explained: how Cisco's Enhanced Interior Gateway Routing Protocol works, DUAL, successors, the metric, packet types and configuration.
July 19, 2022
What Is OSPF? How Open Shortest Path First Works, with Cisco Configuration
OSPF explained: how Open Shortest Path First works, hello packets, neighbour states, areas, DR and BDR, cost, and Cisco configuration with checks.
July 16, 2022
Routing Information Protocol (RIP): How It Works, Timers and Configuration
Routing Information Protocol (RIP) explained: hop count, RIPv1 vs RIPv2 vs RIPng, timers, loop prevention, Cisco configuration and when to use it today.
June 17, 2022
What Is Routing? Static, Default and Dynamic Routing Explained
What routing is and the main types of routing: static, default and dynamic routing, with Cisco configuration examples, pros and cons, and when to use each.
June 17, 2022
Routing Metrics, Cost and Administrative Distance Explained
Administrative distance vs routing metrics: how routers choose the best path, what cost means in OSPF and RIP, and the default Cisco AD values table.
June 17, 2022
Routing Protocol Categories: Autonomous Systems, IGP, EGP and BGP
Routing protocol categories explained: autonomous systems and ASNs, interior gateway protocols (IGP), exterior gateway protocols (EGP) and BGP.
June 17, 2022
What Is a Routing Protocol? Distance Vector, Link State and Path Vector
What a routing protocol is and how the main types compare: distance vector, link state, advanced distance vector and path vector.
June 17, 2022
What Is a Router? Router Components and Cisco IOS Basics
What is a router? Learn router components (CPU, RAM, NVRAM, flash, ROM), the boot process and the basics of Cisco IOS modes.
June 16, 2022