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DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE

Chapter 4. DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE. DESIGN TEAM ROLES. DESIGN TASKS. Gathering and analyzing organizational information Analyzing design options Constructing a design framework Developing and refining the design Assessing and documenting risks

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DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE

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  1. Chapter 4 DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE

  2. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE DESIGN TEAM ROLES

  3. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE DESIGN TASKS • Gathering and analyzing organizational information • Analyzing design options • Constructing a design framework • Developing and refining the design • Assessing and documenting risks • Validating the proposed technology

  4. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE DESIGN PLANS

  5. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE COMPARING THE EXISTING NETWORK INFRASTRUCTURE WITH THE PLANS

  6. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE IP ADDRESSING DESIGN

  7. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE PRIVATE AND RESERVED IP ADDRESSES

  8. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE SUBNETTING A NETWORK • How many subnets and how many hosts per subnet? • Subnetting methods • 2n where n represents the number of bits borrowed • 2n - 2 = number of host addresses available • All 1 and all 0 subnets (RFC 1812) are supported by Windows Server 2003 • Classless InterDomain Routing (CIDR) notation

  9. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE CLASSLESS INTERDOMAIN ROUTING (CIDR)

  10. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE SUPERNETTING

  11. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE CONSIDERATIONS FOR SUBNETTING

  12. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE DESIGNING A DHCP INFRASTRUCTURE • Automatically or manually assign IP addresses • DHCP scopes • IP address and subnet mask • Lease, renewal, and rebind times • Reservations of specific IP addresses for specific hosts (by MAC address) • Options: Default Router, DNS Server, Domain Name, WINS Server, and NetBIOS node type, and more

  13. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE COMBINATION DHCP PLAN DISTRIBUTED DHCP INFRASTRUCTURE DHCP RELAY DEPLOYMENT CENTRALIZED DHCP INFRASTRUCTURE (with a block DHCP discovery message)

  14. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE DHCP SERVER REDUNDANCY • Need to consider routing and network configuration • Consider also server hardware • Split-scope configuration (80/20 rule) • Windows Clustering • Standby scopes

  15. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE DHCP INTEGRATION WITH DNS

  16. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE OTHER DHCP DESIGN CONSIDERATIONS

  17. Chapter 4: DESIGNING THE NETWORK AND ROUTING INFRASTRUCTURE SUMMARY • Design team • Key documentation: hardware, physical topology, operating systems and applications, directory services, protocols and services, connectivity, and security plans • Determining subnets • DHCP infrastructure: Scope options, server placement, integration with DNS, redundancy and split-scopes, and DHCP relay (RFC 1542 compliance)

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