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CCIE Practical Studies: Security (CCIE Self-Study) by Raymond Morrow, Andrew G. Mason, Dmitry Bokotey

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Configuring IS-IS

To configure IS-IS, you are only required to enable the IS-IS process and assign areas and to enable IS-IS for IP routing for an interface. Once you have IS-IS up and running, you can configure several optional items and, if you choose to do so, implement filtering of routing information or specify route redistribution.

Case Study 11-1: Configuring IS-IS for IP

In this case study, you configure IS-IS for IP routing between routers R3, R4, and R7. You use an area ID of 49.0001, and you configure each router as a Level-1/Level-2 router with no optional parameters. You configure each router to have a loopback interface that is advertised by IS-IS. Figure 11-1 illustrates the IS-IS topology, as well as IP addressing, that you use ...

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