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erniebeek, thanks for the info, but I'm looking for something more specific, what I want to do is create a network topology diagram according to the routing tables and if there is a lab specific for that. <br />
<br />
If I go on to a network and there are not diagram/s of the network then I would like to look at the config files, specifically the routing table and make the diagram of the network to use as reference.
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erniebeek, thanks for the info, but I'm looking for something more specific, what I want to do is create a network topology diagram according to the routing tables and if there is a lab specific for that.

If I go on to a network and there are not diagram/s of the network then I would like to look at the config files, specifically the routing table and make the diagram of the network to use as reference.

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Not as specific as what I was looking for, but still helpful.
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Not as specific as what I was looking for, but still helpful.

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My routing skills need improvement and I’d like a lab, GNS3 perfered, that would give me a better understanding of reading routing tables and understanding the topology of a network. <br />
<br />
Thank you,<br />
Dave
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My routing skills need improvement and I’d like a lab, GNS3 perfered, that would give me a better understanding of reading routing tables and understanding the topology of a network. 

Thank you,
Dave

Lab to improve my understanding of the Cisco routing table on a medium size network.

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.