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IN PROGRESS

Enterprise Routing Lab

21-router CML topology covering advanced OSPF, EIGRP, redistribution with loop prevention, and policy-based routing in a single cohesive environment.

OSPF multi-area EIGRP named Redistribution Route tagging PBR MD5/HMAC-SHA-256 UCMP Key rotation
Enterprise Routing Lab topology
COVERAGE
OSPF Areas
  • Area 0 - Backbone
  • Area 1 - Stub
  • Area 2 - Totally Stub
  • Area 3 - NSSA
  • Area 4 - Totally NSSA
  • Area 5 - Normal
  • Inter-area summarization on ABRs
EIGRP
  • Named mode (AS LAB/100)
  • Classic mode (router eigrp 100)
  • UCMP with variance 6
  • MD5 authentication
  • HMAC-SHA-256 authentication
  • Key chain with timed key rotation
  • Delay manipulation for path control
Redistribution
  • Mutual OSPF <-> EIGRP redistribution
  • Two redistribution points
  • Route tagging for loop prevention
  • Prefix lists for filtering
  • Route maps for metric setting
PBR
  • Policy-based routing in Area 10
  • Match on source address
  • Set next-hop for traffic steering
  • Verify with show route-map
NOTES
Built to cover the ENCOR routing domain end-to-end in one topology. The dual redistribution points with route tagging mirrors a real production scenario where two networks are merged and routes need to be exchanged without creating loops. R20 and R21 are the PBR boundary routers - all other routers are fully configured.