Labs · 3 scenarios
Packet Forwarding
Trace how a device decides where to send a packet next, hop by hop, across a few common setups.
Beginner
Local delivery on one LAN
Two hosts on the same subnet exchange a ping with no router involved.
Beginner
Delivery across a gateway
A host reaches a remote server through its default gateway router.
Intermediate
Missing default gateway
Diagnose why a packet to a remote network never leaves the host.