Date of Issue: 08-01-2023

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I. Introduction
II. Current Addressing
III. Topologies

A. MAC Addressing
B. Logical and Physical Relationships: Topologies
C. One-to-One Relationships
D. Relationships beyond 1:1

1. Partial Meshes
2. Demand Circuits

E. Logical and Physical: Mappings
F. Basic Mappings

1. Multiple Logical per Physical Medium: Secondary Addressing
2. Multiple Physical Treated as Single Logical: Basic VLAN
3. Multiple Physical with Multiple Logical: VLAN with secondaries

IV. What do Routers do with Addresses?

A. A Telephone Analogy
B. Network Addresses and Routing
C. Matching Routes
D. A Special Case: The Default Route and ip classless

1. ip classless
2. Default Gateway
3. Default Network
4. Gateway of Last Resort

V. IPv4 Evolution
Just because you can do something, it isn't necessarily a good idea.

A. Routers and Prefixes
B. Classes
C. Getting Address Space

1. Provider Assigned Address Space
2. Private Addresses

VI. IP Addresses: Computer Views, Human Views

A. Dotted-Decimal Notation is for People, not Routers

1. Principles of Dotted Decimal
2. Weighted Binary

B. Subnetting versus Subnet Masks

1. Prefix Length Display Formats
2. Extracting Prefixes from Addresses
3. Reviewing the AND operation

C. Reserved Host Field Values
D. Prefix Practice

VII. Setting Up Simple Address Plans

A. What kind of network? What Mask?
B. Addressing Simple Interconnected LANs

VIII. Configuring IP Addresses into Cisco Routers

A. Basic interface statments
B. Secondary Addressing

1. Stupid hosts and Classful Addressing

C. Subinterfaces

IX. Conclusion
X. References

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