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Network+ lab 1 of 27

Your network toolkit: device CLI and host commands

Find your way around a small office network with the commands Network+ expects you to know: router and switch show commands, CDP, and the Linux and PC tools for addressing, ARP, ping and traceroute. You document what you find and save the configuration.

Run this lab

It needs Lite: its 5 nodes are set to 5 vCPU and 3,328 MB in total. That fits the free demo too.

In your workspace: Shared, then CompTIA Network Plus N10-009 guided labs, then 01 - Your network toolkit - device CLI and host commands

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Level
Beginner
Time
About 45 minutes
Nodes need
5 vCPU, 3,328 MB
Smallest plan
Lite

The scenario

You've just joined Harbour Logistics as a junior network technician. The front office has one router (R1), one switch (SW1), a Linux workstation (H1) and a reception PC (PC1). R1 connects to the head-office router R2, which also stands in for a web server on the internet at 203.0.113.10.

Nobody has documented the network. Your first job is to learn the tools, find out what's connected where, write it down on the devices themselves, and make sure your work survives a reboot.

DeviceInterfaceAddressConnects to
R1Gi0/010.10.10.1/24SW1 Gi0/0 (office LAN)
R1Gi0/110.0.12.1/30R2 Gi0/0
R2Gi0/010.0.12.2/30R1 Gi0/1
R2Loopback0203.0.113.10/32"web server"
SW1Vlan110.10.10.2/24management address
H1eth0DHCP from R1 (10.10.10.100 upwards)SW1 Gi0/1
PC1eth010.10.10.50/24 (you set it)SW1 Gi0/2

What you’ll practise

  • Move between user, privileged and configuration modes on a router and a switch
  • Read show ip interface brief, show interfaces, show ip route, show arp and show mac address-table
  • Discover neighbouring devices with CDP and document links with interface descriptions
  • Use ip, ping, traceroute, netstat and ARP tools on a Linux host and a PC
  • Map each tool to the OSI layer it tests
  • Save the running configuration and confirm the startup configuration

The tasks

  • Task 1: Find your way around the router CLI
  • Task 2: Discover the neighbours and document the links
  • Task 3: Use the Linux host's network tools
  • Task 4: Configure the reception PC
  • Task 5: Follow a frame through layer 2 and layer 3
  • Task 6: Save your work
  • Which tool tests which layer?

The Lab Tasks pane has the scenario, these tasks, the checks to run, hints and the full solution.

Topology and devices

The network as it opens in EVE-NG, drawn from the lab’s own canvas, and the image each node runs.

Topology of Your network toolkit - device CLI and host commands5 nodes, 4 links. Every link is listed as text below the diagram.R2R1SW1H1PC1Gi0/0Gi0/1Gi0/0Gi0/0Gi0/1eth0Gi0/2eth0
5 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • R2 Gi0/0 to R1 Gi0/1
  • R1 Gi0/0 to SW1 Gi0/0
  • SW1 Gi0/1 to H1 eth0
  • SW1 Gi0/2 to PC1 eth0
Nodes in Your network toolkit: device CLI and host commands, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
R2Cisco IOSvvios-adventerprisek9-m.SPA.159-3.M61 vCPU, 512 MB
R1Cisco IOSvvios-adventerprisek9-m.SPA.159-3.M61 vCPU, 512 MB
SW1Cisco IOSvL2viosl2-adventerprisek9-m.ssa.high_iron_202009291 vCPU, 768 MB
H1Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB
PC1VPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 MB

How to open this lab

  1. Sign in to your workspace at lab.cloudlabbox.com.

  2. In File Manager, open Shared, then the folder CompTIA Network Plus N10-009 guided labs.

  3. Open 01 - Your network toolkit - device CLI and host commands and start its nodes, then open Lab Tasks for the scenario and the steps.

The lab is read-only. You can start the nodes and configure the devices, but changes to the topology can’t be saved. To change it, rebuild it in your own folder.

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CloudLabBox is independent of CompTIA, Cisco and Netgate. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.