The Need for Intrusion Detection

The need for intrusion detection is based on the increasing number of threats faced by the computer networks in today's world. Here are some of the fundamental reasons why so many attacks are being launched on computer networks: Computer networks are used to carry information that is valuable no...

The Point-to-Multipoint Model

The point-to-multipoint model is very similar to the point-to-point model. It provides one subnet for an entire cloud, and it maintains host routes to all the routers within the cloud. This also allows the use of non-meshed routers.   TIP   A new command was recently int...

Enhanced IGRP and Passive Interface

If you do not want to enable Enhanced IGRP on an interface, you must set it in passive mode. This prevents Enhanced IGRP from sending multicast hellos to an interface. The question then becomes: When would you want to set a passive interface?   There are situations in which you should ...

Goal of This Lab

This lab should assist you in your final preparation for the CCIE Security lab exam. Sample solutions are provided here, but you need to research other various solutions on your own. Feel free to modify the questions to suit any design scenario and discover new IOS commands by using the Cisco Uni...

Configuring SDLC for Multidrop Connections

SDLC supports multidrop connections. These are serial links that connect to several downstream devices in series. Each device has its own SDLC address, which must be configured in the router. The global DLSw configuration for this example is omitted here because it is identical to the previous examp...

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