To disable automatic summarization in EIGRP, which command is used?

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The correct command to disable automatic summarization in EIGRP is "no auto-summary."

Automatic summarization allows EIGRP to summarize routes at classful boundaries, which can be useful in networks that are designed to use classful addressing. However, in many modern networking environments that utilize classless addressing, automatic summarization can lead to suboptimal routing decisions and issues such as route flapping or black hole routes.

By using the command "no auto-summary," EIGRP will continue to advertise subnets individually rather than summarizing them at the network boundaries. This will lead to more precise and efficient routing information being shared among router peers, especially in scenarios where discontiguous subnets need to be communicated.

The other options presented do not relate specifically to disabling automatic summarization, highlighting that they serve different purposes within the EIGRP configuration context. For instance, "maximum-paths NUMBER" is used to configure the number of equal-cost paths that will be used for load-balancing, while "network NETWORK TO BE ADVERTISED" is used to define which networks EIGRP will include in its advertisements. Lastly, "config-line#end" does not correspond to any EIGRP configuration command but simply indicates a method to exit

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