January 2001
Intermediate to advanced
288 pages
7h 52m
English
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Configuring Cisco Routers
In large routed network environments, routers are used to direct IP packets between different subnets. As such, routers are perfect candidates to be DHCP relay agents.
In this section, I will explain how to configure a Cisco router to act as a DHCP relay agent. Although there are other manufacturers of routing equipment, I am describing this configuration because Cisco is the de facto standard in routers. To configure other routers, please refer to the product documentation.
Warning
There are many aspects to correctly configuring a Cisco router. This book describes the configuration of the DHCP relay agent. Please see other O’Reilly books for more information on configuring Cisco routers.
The following configuration is based on a Cisco Systems 2500 router using the Cisco IOS Release 12.0:
Using either Telnet or terminal emulation, establish a connection with the router.
If prompted for a password, enter it now.
At this point, the router is in user mode. User mode can be used to get basic information about the router.
Next, enter privileged mode by entering the following command at the console prompt:
Router>
EnableIf prompted for the enable password, enter it now. The prompt now looks like the following:
Router#
To enter configuration mode, the
configterminalcommand must be used. Theconfigterminalcommand executes commands entered at the router prompt. Enterconfigterminalat the prompt:Router#
config terminalEnter configuration commands, one per line. End ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.