It-242

It-242

Christy Williams
                                    University of Phoenix- Profressor Sims
                                    Wk 6 Assignment Router & Switch Conf.



















"Let’s go through the basic steps of setting up a Cisco router to provide Internet access to a small network. I’ll assume you have some basic IOS knowledge, including how to log on and how to save and clear configurations. I’ll also assume that you have a solid understanding of networking, including what Network Address Translation (NAT) is. I won’t cover items such as setting up Secure Shell (SSH) access and hardening access lists. You can expand into those areas as you feel comfortable and want to experiment more.

What You’ll Need
You need a Cisco router with at least two Ethernet interfaces. An 806, 836, 851, or 871 is ideal for a home or small office setup—in fact, that’s what those models are geared towards. You can buy an 851 for a few hundred dollars from various online retailers. However, a 2610 works just as well, and you might have one sitting in the equipment bin at your office that you can ask to borrow.

Your router should have IOS 12.2 or later. This article is based on a Cisco 851W with IOS 12.4, including the IOS firewall feature set.

You also need a Cisco console cable (sometimes called a rollover cable). One end has an eight-position, eight-conductor modular jack to connect to the router; the other end has a DB-9 serial connector. In recent years, the console cables that Cisco has shipped with its equipment have been light blue.

You need a computer with a DB-9 serial port. In my experience, USB-to-serial converters work just fine for this application. You also need a computer with a terminal emulation program. Hilgraeve’s HyperTerminal is available with Windows XP, but it was removed from Windows Vista. Vista users can download Hyper- Terminal Private Edition 6.3 at www.hilgraeve.com/htpe/download.html. Mac OS X users can Google...

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