Cisco ICND2 200-105 - CCNA Bootcamp

Learn how to set up a free lab on your PC using GNS3 for routing and Packet Tracer for switching, with topology diagrams, lab guides, and practice tasks.

Install and configure Cisco Packet Tracer, register and log in, access lab exercises and topology files, and build networks by dragging devices and connecting links.

Explore dynamic routing by examining common protocol characteristics and how interior gateway protocols use distance-vector or link-state methods to determine the best path, such as OSPF and BGP.

Explore how dynamic routing protocols automatically advertise networks and learn topologies, form adjacencies, and update routing tables to converge after topology changes, unlike static routes.

The lab demo shows dynamic routing with rip across a five-router topology, enabling the protocol and using templates to configure all routers, with debug outputs revealing learned networks.

Identify IGPs and EGPs, interior gateway protocols for inside an organization and exterior gateway protocols like BGP for interdomain routing.

Compare distance-vector rip and ospf in a live lab, configure routing protocols, form adjacencies, exchange routes, and inspect the ip routing database and tables.

Explore how routing protocol metrics assign costs to multiple paths and determine the best route, comparing hop count, bandwidth, and cost across RIP, OSPF, ISIS, and EIGRP.

Explore igp metrics in a lab by comparing rip, isis, ospf, and eigrp behavior, including hop count, bandwidth, administrative distance, and rapid convergence across router adjacencies.

Learn how equal cost multipath distributes traffic across multiple equal-cost paths by default in IGPs, and how static routes can balance load across paths while preserving single-flow consistency.

Explore equal cost multipath routing with RIP and OSPF in a hands-on lab, analyzing hop counts, bandwidth, and dynamic convergence to balance traffic across multiple paths.

Learn how administrative distance and metrics decide the best path when routes come from different routing protocols, compare RIP, OSPF, and static routes, and configure floating static backups.

Explore administrative distance with RIP, ISIS, OSPF, and EIGRP in a hands-on lab. Implement a floating static route and test failover to a backup path to demonstrate convergence.

Explore loopback interfaces, a logical router IP with a slash thirty-two mask for reliable management. Use them for BGP and OSPF router IDs and ensure reachability across multiple paths.

Learn how adjacencies form between routers via multicast hello packets and how passive interfaces control routing updates. Loopback interfaces are typically passive to improve efficiency.

Configure rip version 2 and set interfaces facing the partner as passive to prevent adjacency, then verify internal routes converge across the topology and protect internal networks.

Start with ping to troubleshoot basic network issues, then use trace for deeper diagnostics, mastering the most common commands used by network engineers.

Configure ip sla to monitor network performance by generating icmp traffic, measuring latency and loss, and verifying voice traffic between headquarters and branches for basic troubleshooting and SLA validation.

Explore EIGRP, Cisco’s routing protocol, including basic configuration, summarization, and passive interfaces, then delve into successors and feasible successors, plus the IGMP metric, with practical lab demos.

Learn the EIGRP characteristics, including fast convergence and multicast updates to affected neighbors, then configure it with a global router eigrp and interface-based network statements using wildcard masks.

Configure eigrp in a lab and verify operation with commands like show ip eigrp neighbors, show ip protocols, and show ip route; confirm interfaces and adjacencies.

Learn advanced EIGRP topics, including choosing a stable router ID (manual or loopback), configuring passive interfaces, and injecting default routes with route summarization and auto-summary decisions.

Configure an eigrp network across routers, set router IDs, apply manual and auto summarization, designate a passive interface, and inject a default route toward the internet.

Discover how EIGRP uses advertised distance and feasible distance to select successors and feasible successors, evaluating routes through neighbor metrics and maintaining fast backup paths.

Learn how eigrp metric is calculated using bandwidth and delay, how to manipulate the metric via interface settings, and why reliability or load are not recommended.

Explore how EIGRP uses feasible successors and metric tuning to influence path selection, demonstrating route feasibility, backup paths, and metric manipulation in a hands-on lab.

Learn the basics of OSPF, its open shortest path first method, manipulate the cost metric, configure passive interfaces, and plan network segmentation.

Explore how OSPF characteristics enable scalable, efficient routing through the open standard link-state protocol, using Dijkstra's shortest path first, multicast flooding, neighbor adjacencies, and reliable database synchronization.

Configure OSPF with a global process ID, noting that different IDs can form adjacencies; use network commands with wildcard masks to enable OSPF on interfaces and verify neighbors.

Configure a basic single-area OSPF across five routers for 10.x networks in a lab, then verify adjacencies and routes with common show commands.

Learn advanced OSPF topics, including router-id selection, configuring passive interfaces, and redistributing defaults to OSPF with practical verification commands.

Configure OSPF by setting the router-id explicitly, restarting the OSPF process to apply changes, marking internal interfaces as passive, advertising internal networks, and originating a default route into OSPF.

Understand the OSPF cost metric derived from interface bandwidth using a 100 Mbps reference bandwidth, guiding routes to the lowest cost path and enabling cost based traffic control.

Learn how to manipulate the OSPF cost metric in a lab to steer traffic, by setting a consistent reference bandwidth and adjusting costs to favor the chosen path.

Explore how OSPF uses a backbone area 0 and multiple areas to scale routing. See how area border routers connect areas, propagate intra-area and inter-area routes, and require manual summarization.

Demonstrates configuring multimedia OSPF areas in a growing network, establishing a backbone area 0 and area 1, and applying 10.0.0.0/16 summarization to optimize inter-area routing.

Learn about VLANs in campus network design, covering core, distribution, and access layers, then explore VLAN basics and configure eyewear access ports and eyewear trunk ports, plus DTP and VCP.

Design campus local area networks using access, distribution, and core layers to ensure scalability, redundancy, and high performance, with uplinks and policy considerations across buildings.

Explain why VLANs segment broadcast domains on layer 2 switches to improve performance and security, restricting broadcast traffic to each subnet and enabling subnet-specific policies.

Configure VLAN access ports on switch interfaces, assign hosts to specific VLANs, and verify with show VLAN brief to keep traffic within the same IP subnet.

Configure VLAN access ports on a switch to segment broadcast domains, assign engineering and sales PCs to separate VLANs in different subnets, and verify connectivity with pings.

Learn how to configure VLAN trunk ports between switches using dot1q tagging, including access vs trunk ports, native VLAN, and ensuring traffic stays within its VLAN across switches.

Configure data and native VLANs across switches, set trunk ports with dot1q, and verify connectivity with show commands and ping tests.

Explore the DTP dynamic trunking protocol and how Cisco switches negotiate trunks, with manual port configurations using switchport mode access, switchport mode trunk, or dynamic desirable.

Explore how VTP VLAN trunking protocol synchronizes VLAN databases across servers and clients, enabling centralized creation, editing, and deletion of VLANs with changes propagated to all switches.

Configure vtp in a lab to manage vlan trunks across switches, set domain names and trunk modes, verify with show commands, test connectivity, and plan routing to enable subnet communication.

This section explains inter-vlan routing, presenting three options: router with interfaces in separate vlans, router on a stick with subinterfaces, and a layer 3 switch, plus their advantages and verification.

Learn how a router with separate interfaces provides a default gateway for each vlan, assigns dedicated ip subnets, and routes traffic between subnets.

Implement a router on a stick by creating VLAN 10 and VLAN 20 subinterfaces with dot1q encapsulation and trunking the switch, then test with pings.

Explore configuring a layer 3 switch for inter-VLAN routing using switch virtual interfaces and IP routing to connect engineering and sales networks, with WAN access via an external router.

Configure layer 3 switches to route between VLAN 10 and VLAN 20, enabling IP routing, creating VLAN interfaces, and verifying end-to-end connectivity across the campus network.

Explore network redundancy, prevent single points of failure, and manage failover with redundant devices and gateways. Learn about HSRP in Cisco environments and basic configuration.

Learn how to design network redundancy that eliminates single points of failure using dual service providers, redundant WAN edge and core switches, and failover through static routes.

Explore first hop redundancy protocols to provide automatic gateway failover using a shared virtual ip and mac, with hsrp, vrrp, and glbp offering active standby and load balancing options.

Learn how HSRP creates a virtual IP and MAC address to provide automatic gateway redundancy with active and standby routers, while PCs use the virtual gateway without awareness.

Explore hsrp advanced topics, including priority and preemption, and achieve load balancing with srp across subnets; learn about standby version 2 and keeping both routers on the same version.

Explore the spanning tree protocol to prevent loops in layer 2 networks, and learn terminology, versions, configuration, verification, and how to align paths with your HSR configuration.

Examine layer 3 path selection and loop prevention by configuring static and backup routes, implementing redundant gateways with HSRP, and using TTL-based safeguards to prevent routing loops.

Explore why the spanning tree protocol prevents layer 2 loops and broadcast storms by blocking selected switch ports, explains MAC learning, and notes convergence time and bandwidth impact.

Explore spanning tree terminology by comparing bridges and hubs, and see how layer one devices evolve into switches that learn MAC addresses and forward unicast traffic.

Learn how the spanning tree protocol prevents network loops by electing a root bridge, choosing root and designated ports, blocking links, and handling equal-cost paths.

Explore open standard spanning tree versions from 802.1D to 802.1W rapid spanning tree and 802.1X, and compare Cisco PVST and rapid PVST+ for per-VLAN instances and load balancing.

Verify spanning-tree protocol using show spanning-tree per VLAN, identify root bridge, bridge IDs, and designated vs blocking ports, ensuring all switches run PVST+ and a consistent VLAN topology.

Verify traffic paths by inspecting the mac address table on switches with show mac address-table, confirming learned addresses and interfaces from pc to r1, aiming for the shortest path.

Explain how to manipulate the root bridge election by adjusting bridge priority and MAC address, designating core switches as primary and secondary roots to optimize spanning tree paths.

Align spanning-tree and HSRP to route traffic via the most direct path, using CD 1 as primary and CD 2 as secondary, with load balancing to prevent outages.

Explore portfast and BPDU guard, understand how portfast accelerates forwarding and why disabling it per interface or globally prevents loops and broadcast storms, with BPDU guard shutting down rogue ports.