Routing & IPV4

Clean, scrollable catalog. Use the jump links or just scan the chips below.

OSPF BGP EIGRP IS-IS

IPv4 — OSPF

From baseline config and LSAs to multi-area, redistribution and fast convergence.

Basic OSPF Configuration

OSPF Overview OSPF — Network Statement Passive Interface Metric Calculation Multi-Access Segment Serial Link Loopback Interface Unicast Neighbors

OSPF LSAs

Type 1 — Router LSA Type 2 — Network LSA Type 3 — Summary LSA Type 5 — External LSA Type 4 — ASBR Summary LSAs Recap

Multi-Area & Multi-Domain

Build Multi-Area / Multi-Domain Type-3 LSA Filtering Inter-Area Summarization (Manual) External Route Summarization Clear-Text Authentication MD5 Authentication

Area Types

Stub Area Totally Stubby NSSA NSSA — Stub NSSA — Totally Stubby

Redistribution in OSPF

Prep Multi-Domain Topology Redistribute EIGRP & OSPF Redistribute Static Redistribute Connected Filtering during Redistribution Route Tagging

OSPF Advanced

Virtual Link — Single Tier Virtual Link — Multi Tier BFD with OSPF IP FRR (Fast Reroute)

IPv4 — BGP

eBGP & iBGP fundamentals, policy control, attributes and advanced design.

Basic eBGP Configuration

BGP Overview Basic eBGP Inject via Network Statements Inject via Redistribution — Connected IGP → BGP Redistribution MD5 Authentication eBGP Multi-Hop

iBGP Configuration

Underlay for iBGP iBGP with Loopbacks Next-Hop-Self Route Reflectors — Basic Peer-Groups

Filtering & Summarization

ACLs & Prefix-Lists (Overview) Route Filtering — ACL Route Filtering — Prefix-List AS-Path Filter Aggregation with Filtering Aggregation — Summary-Only Aggregation — Suppress-Maps Aggregation — Unsuppress-Maps

BGP Attributes

Attributes — Overview Local Preference MED Weight AS-Path Std Community — No-Advertise Std Community — No-Export

BGP Advanced

Conditional Advertisement Multipaths Redistribute Internal RR with Next-Hop-Self BFD Advanced Route Reflectors Dynamic Neighbors Private-AS Local-AS Confederations

IPv4 — EIGRP

Classic & named mode, hardening, optimization and redistribution scenarios.

Basic EIGRP Configuration

EIGRP Overview Network Statement Passive Interfaces Unicast Neighbors Metric Calculations

Optimizing EIGRP

ECMP & Unequal-Cost LB Auto-Summary Manual Summary Leak-Maps

Securing EIGRP

ACLs & Prefix-Lists Route Filtering — ACL Route Filtering — Prefix-List MD5 Neighbor Auth

Named-Mode EIGRP

Basic Named-Mode Authentication — SHA Named ↔ Classic Interop Authentication — MD5

Redistribution with EIGRP

Prep Multi-Domain Redistribute Connected & Static RIPv2 ↔ EIGRP EIGRP ↔ EIGRP (different ASNs) OSPF ↔ EIGRP Filtering during Redistribution Route Tagging Multi-Point Mutual Redist (EIGRP↔OSPF)

Additional Labs

BFD for EIGRP

IPv4 — IS-IS

Core IS-IS operation, multi-area design, redistribution and authentication.

Basic IS-IS Configuration

IS-IS Overview Single-Area IS-IS DIS Election Level-1 Only Level-2 Only IS-IS Metrics Metric Style

IS-IS Multi-Area

Build Multi-Area IS-IS Level-1 Role in Multi-Area L2 → L1 Route Leaking Inter-Area Summarization Clear-Text Authentication MD5 Authentication BFD for IS-IS

IS-IS Multi-Domain

Build Multi-Domain Topology Redistribute Connected & Static OSPF ↔ IS-IS EIGRP ↔ IS-IS External Summarization (Manual) Filtering during Redistribution Route Tagging