show ip protocols
Basic EIGRP Troubleshooting Commands
EIGRP troubleshooting comes down to a small, repeatable set of commands, applied in a logical order — from basic connectivity, through parameter matching, to specific configuration issues like passive interfaces and automatic summarization. Knowing this order well enough to work through it without hesitation is what separates methodical troubleshooting from guessing. This guide walks through...
How to Verify Multiarea OSPF
Most multiarea OSPF verification uses the exact same commands already familiar from single-area OSPF — show ip ospf neighbor, show ip ospf, and show ip ospf interface all work identically regardless of how many areas are involved. A handful of additional commands specifically surface multiarea information: which areas a router participates in, how routes crossed...