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Routing TCP/IP, Volume I (CCIE Professional Development) by Jeff Doyle

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Chapter 12. Default Routes and On-Demand Routing

  • Fundamentals of Default Routes

  • Fundamentals of On-Demand Routing

  • Configuring Default Routes and ODR

    Case Study: Static Default Routes

    Case Study: The Default-Network Command

    Case Study: The Default-Information-Originate Command

    Case Study: Configuring On-Demand Routing

Summarization has been examined in several chapters so far. Summarization conserves internetwork resources by reducing the size of routing tables and route advertisements. The smaller, simpler routing tables can also make management and troubleshooting easier.

A summary address is an address that represents several, sometimes many, more-specific addresses. For example, the following four subnets:

192.168.200.128/27

192.168.200.160/27 ...

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