THE PINGLABZ CCNA BOOK · CHAPTERS 1–17
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A place to practise each exercise as you work through the book. Start with the prompt, build a small network, then learn to explain what it does. About the book, lab files and corrections ↗
1.1 · Find your way around IOS
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94 of 94Find your way around IOS
Read the prompt and move between command modes. Start with one fresh router; no network link is needed.
Let IOS help you
Find a command with help, recall it, and recognize two error messages. Enter enable first if the prompt ends in >.
Name the router and save your work
Change the router name, save it, and check it after a restart. This exercise starts with a fresh Router.
Inspect an Ethernet interface
Select Ethernet0/1, label it, and turn it off and on. The name R-A is supplied from Lab 1.3. This port has no cable or IPv4 address.
Connect and address two routers
Give each end of one Ethernet link an IPv4 address. R-A's name, description, and enabled practice port are supplied from Lab 1.4. R-B starts fresh.
Test the link and make one repair
Test a working link, disable one end, and make the smallest repair. Both router configurations and the cable from Lab 1.5 are supplied.
Find the subnet before you configure it
Calculate three subnet boundaries, build the addressed links, and compare two address errors. The cable pairs are supplied; routers and hosts need addresses.
Make room before assigning addresses
Allocate space for a growing service LAN, then configure the revised plan. The links are supplied. All devices begin without exercise addresses.
Repair a client’s prefix and gateway
Find why a local router answers while a remote client does not. The router addresses, static routes, and no-proxy-ARP settings are supplied as prerequisites. H-B is correctly addressed; configure and then break H-A.
Read the settings that actually apply
Interpret the book's supplied Linux and macOS observation panels. This is a worksheet with no devices. Use each panel to distinguish settings from proof of reachability.
Find the next hop in a frame
Build two routed LANs and distinguish the local Ethernet destination from the remote IPv4 destination. The cables are supplied; you configure the router and both hosts.
Match a learned MAC to its port
Build VLAN 17, generate an exchange, and match host MACs to switch ports. The three host cables are supplied; configure the switch and hosts.
Build two access VLANs
Build two host pairs, then test their Ethernet boundary with an address the sender treats as local. Cables are supplied; configure the switch and all four hosts.
Give one access port a voice VLAN
Add and repair the voice attribute while keeping untagged data working. The VLANs, data ports, host addresses, and CDP prerequisite settings are supplied. H-MIX has no tagged voice subinterface; H-VOICE is a separate VLAN 119 reference host.
Read both ends of a cable with discovery
Read reciprocal discovery records on a three-switch chain, then stop only one CDP conversation. The printed cable pairs are supplied. Configure names and protocols; no hosts or IP addresses are needed.
Repair one misplaced access port
Break one desk port and restore it without disturbing the stock pair. The working VLANs, port settings, and all four host addresses are supplied as the starting state. Test them before creating the fault.
Choose the port, cable, and power budget
Turn supplied endpoint specifications into a switch-port plan. This is a worksheet with no IOS devices. Port labels P1–P4 and F1–F2 are planning labels, not interface names.
Carry two VLANs over one trunk
Build an explicit trunk and add one permitted VLAN without replacing the rest.
Repair two trunk settings
Restore scanners, retain operations, and keep the bench VLAN off the interswitch link.
Route between VLANs with subinterfaces
Build two router gateways on one Ethernet connection and verify the tags.
Separate a gateway from forwarding
Create two switch gateways, then enable routing as a separate step.
Find what makes an SVI usable
Restore a VLAN’s trunk permission while preserving the other local gateway.
Read the tree before changing its mode
Enable Rapid PVST and identify the root, root ports, and alternate port.
Choose a root for each VLAN
Make WEST preferred for VLAN 30 and EAST preferred for VLAN 130.