EIGRP automatically summarizes routes at the classful
boundary (the boundary where the network address ends as defined by
class-based addressing). In some cases, however, you may not want
automatic summarization to occur. If you have discontiguous networks, for
example, you need to turn off summarization.
To turn off automatic summarization, initiate the following command:
router(config-router)#no auto-summary
If you want to summarize networks in an
address that you define, perform the following steps:
- Select the interface that will
propagate the route summary.
- Specify the format of the route
summary and the autonomous system into which it needs to be injected by
using the following:
router(config-if)#ip
summary-address eigrp as-number address mask
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Lab
Activity |
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In this lab,
you will learn how to discover Auto-Summarization by the EIGRP routing
protocol. |
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