[mrtg] Re: OT Setting up a Router to Router test WAN

[Jay Hennigan]

On Wed, 14 Apr 2004, Alan Rader wrote:

> I am trying to setup a test WAN.  I have Cisco routers (2611 & 3640)
> both with an internal CSU/DSU.  I want to simulate a T1 connection
> between them using serial ports and eigrp.  Can this be done using a
> cross connect ethernet cable?  So far I have had no luck and the only
> things I am finding on the internet are from years ago before internal
> CSU/DSUs.

It needs different pinouts on the crossover cable.

1 - 4 a
2 - 5 a
3 - 3 b
4 - 1 c
5 - 2 c
6 - 6 b
7 - 7 d
8 - 8 d

(a, b, c, d are twisted pairs)

Looking into the socket....

 12345678
 |_    _|
   |__|

In reality. pairs a and c are the only ones that matter.

Exactly one of the CSU/DSUs should be set to clock source internal.

-- 
Jay Hennigan - CCIE #7880 - Network Administration - jay at west.net
WestNet:  Connecting you to the planet.  805 884-6323      WB6RDV
NetLojix Communications, Inc.  -  http://www.netlojix.com/

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