Recap - Prove It Works

Lesson 35 of 35 in Coddy's LAN Labs course.

Challenge

Easy

The branch is repaired. Prove it end to end: ping h3 from h1, ping h4 from h2, then trace the path from h4 back to h1.

Expected output:

h1 -> h3: reply from 192.168.20.11 (ttl=63, via br)
h2 -> h4: reply from 192.168.20.12 (ttl=63, via br)
trace h4 -> h1
1  192.168.20.1  br
2  192.168.10.11  h1

Try it yourself

Terminal

All lessons in LAN Labs

1Meet the Lab

Your First Lab Cables Wires Are Not Enough Recap - Build a Lab

4Routers and Gateways

Two Networks The Default Gateway Both Sides Need a Way Back Routing Tables Recap - Connect the Floors

7Growing the Office

The Plan Sales Comes Online Engineering Joins Gateways Everywhere Recap - The Printer

2Addresses on the LAN

Giving a Host an Address The First Ping What ARP Learned The Switch Learns Too Recap - First Conversation

5Troubleshooting I

The Unplugged Host The Missing Gateway The Typo in the Mask Recap - Two Faults

8Capstone - Fix the Branch

Survey the Damage Fix the Address Clash Masks and GatewaysRecap - Prove It Works

3Masks Matter

Wrong Mask, No Reply Same Switch, Other Subnet Let check Do the Looking Recap - Diagnose the Pair

6Troubleshooting II

Two Devices, One Address The Network Address Trap Gateway on the Wrong Subnet Recap - The Silent Router

Practice on your own: Terminal playground