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09.26.05
Buying And Building An Access Server
 By
Chris
Bryant
A Cisco access server is generally the last
item a CCNA or CCNP candidate has on their mind when they're
putting together a home lab.
The thinking tends to be that since this router isn't really
doing anything in the production part of your practice lab,
it's not really important.
Once you have more than two devices in your home lab, though,
you'll realize that constantly moving the console cable around
from one router to another gets very tiresome. That's what an
access server does for a home lab - it allows you to connect
your PC to a single device when working in your home lab, with
no need to constantly disconnect and reconnect the console cable.
The console cable will be connected directly to the access server,
and the access server is connected to all the other devices
in your home lab. Once you start working with one, you'll wonder
how you got along without it!
The term "access server" is a little misleading. This is not
a server in the traditional sense, it's a Cisco router with
asynchronous serial ports. It is these ports that you'll use
to connect to the other devices in your home lab. Two affordable
models of access servers are Cisco 2509s and Cisco 2511s. They
can be found on ebay as well as other vendors on the Net.
You will also need an octal cable. On one end, the cable has
a large connector that will connect to the access server. The
other end is actually eight separate cables, each with RJ-45
connectors. These connectors are numbered 1 - 8 and will be
connected to the console port on each router and switch. It
is important to note the number on each connector you're connecting
to the other lab devices.
Now that you've got the physical equipment, let's take a look
at a typical configuration of an access server:
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname BRYANT_ADVANTAGE_AS4
!
!
no ip domain-lookup
ip host r1 2001 10.4.4.4
ip host r2 2002 10.4.4.4
ip host r3 2003 10.4.4.4
ip host sw1 2004 10.4.4.4
ip host sw2 2005 10.4.4.4
ip host FrameSwitch 2006 10.4.4.4
!
interface Loopback555
ip address 10.4.4.4 255.255.255.0
line con 0
exec-timeout 0 0
logging synchronous
line 1 16
no exec
transport input all
Read
the Full Article
About the Author:
Chris Bryant, CCIE #12933, is the owner of The Bryant Advantage.
The Bryant Advantage offers dozens of FREE CCNA and CCNP tutorials and
articles. The Bryant Advantage sells the world's most comprehensive
CCNA Study Guide, and my exclusive Binary Math and Subnetting Mastery
book. My $299 CCNA Online Fast Track is the world's fastest-growing
CCNA course. Visit http://www.thebryantadvantage.com today! |
