CCNA Plan

IP Connectivity: flashcards

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Route selection order
1) longest prefix match 2) lowest administrative distance 3) lowest metric.
Administrative distances
Connected 0, static 1, eBGP 20, EIGRP 90, OSPF 110, RIP 120.
OSPF router ID selection
Manual router-id > highest loopback IP > highest active physical interface IP.

Primary references

  1. CCNA Exam v1.1 (200-301) Exam Topics — Cisco Systems · primary · retrieved 2026-09-21, verified 2026-09-21