Troubleshooting mode
intermediate
Fix a missing default route
Symptom: PC-A reaches R1 but not the remote server SRV2 (172.16.0.10).
- Do not change any interface addresses.
- Do not modify R2.
Success checks
- Hidden until resolved
- R2 configuration unchanged
Evidence: 0 diagnostic commands · 0 config changes
Finish unlocks when every check passes in the simulator.
0 errors · 0 warnings
Link / device state
Up / healthy
Warning (e.g. VLAN mismatch)
Down / no link
Device error
Simulated console. Commands read the current lab state. Type help.