Ccna-2v7.0 Case Study -rev B- |best| -

Set primary/secondary root for different VLANs (load balancing).

The is not merely a test of rote commands; it is a simulation of a network engineer’s daily workflow. By methodically working through VLAN segmentation, inter-VLAN routing, DHCP, static routing, NAT, and ACLs, you are constructing a small enterprise network from scratch.

interface f0/1 switchport mode access switchport access vlan 10 no shutdown

A critical best practice reinforced in Rev B is the modification of the native VLAN from the default VLAN 1 to an unused VLAN (e.g., VLAN 99) to prevent VLAN hopping attacks. The command switchport trunk native vlan 99 is applied. Additionally, switchport mode trunk and explicitly allowed VLANs using switchport trunk allowed vlan add ... ensure only required traffic traverses the trunk. ccna-2v7.0 case study -rev b-

Routers ( CHG-RTR , BAN-RTR , BRDR-RTR ) and Layer 3 infrastructure require explicit initial configuration and security hardening to prevent unauthorized access. 1. Global Hardening Steps

We can discuss how to properly configure on a Cisco WLC.

To connect the corporate headquarters to an ISP or remote office, you must configure static routing or Single-Area OSPFv2. OSPFv2 Dynamic Routing Configuration interface f0/1 switchport mode access switchport access vlan

he was currently writing to keep the research data behind a virtual fortress. 4. The Final Ping By 2:00 AM, the last piece of the Case Study was in place: Static Routing for the backup link and for the primary.

Create Loopback 10 interfaces to simulate LAN networks on routers. 4. Phase III: DHCP and Wireless Services

Mastering this case study will leave you with a portfolio-worthy configuration and the confidence to move on to the third CCNA v7.0 course (ENSA) and, ultimately, the CCNA certification exam. Good luck, and happy configuring. ensure only required traffic traverses the trunk

PHX-SW-1(config)# interface range gigabitethernet 1/0/22 - 24 PHX-SW-1(config-if-range)# switchport mode trunk PHX-SW-1(config-if-range)# switchport trunk native vlan 77 PHX-SW-1(config-if-range)# exit Use code with caution. Rapid Spanning Tree Protocol (RSTP) Implementation

Remember the troubleshooting mindset: start at Layer 1, verify Layer 2, and only then proceed to Layer 3 and above. Use ping , traceroute , and show commands relentlessly. If a ping fails, check the ARP table, check the routing table, and verify ACLs.

: The case study forces a practical comparison between manual static route management and the automated discovery provided by dynamic protocols like OSPFv2 , highlighting why certain environments might prefer the lower overhead of static routes despite their lack of scalability.

Create and name all specified VLANs explicitly on every local switch.

These steps adhere to the defense-in-depth principle, reducing the attack surface of the network.