Exercises — Cisco Packet Tracer

He went back to basics. He checked the interfaces. Up/up. IP addresses? Correct. The network statement? He retyped it carefully:

Neighbor ID Pri State Dead Time Address 10.0.1.1 1 FULL/DR 00:00:37 10.0.14.1 cisco packet tracer exercises

He held his breath. He clicked back to R4. He went back to basics

R4(config-router)#network 10.0.4.0 0.0.0.255 area 0 had abandoned him an hour ago

Nothing. Dead silence. The virtual equivalent of a dial tone in an empty house.

He leaned back, the cheap plastic chair groaning in sympathy. His roommate, Maya, had abandoned him an hour ago, muttering something about "sane people sleeping." The only light came from his monitor and the faint blue glow of the server rack in the corner. Packet Tracer hummed quietly, a low, digital thrum.