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New Member

What serial cable do I need for Lab (cisco 2600 and 1600)

Hi,

I am unsure of what cables I need for my small lab. I would like to simulate a WAN I have a spare Cisco 2600 router and a spare Cisco 1600 but no cables.

I was told I could create a WAN by getting 2 serial cables and reversing one so I don't need a CSU/DSU.

Any idea what I need to get, I might just get them off ebay.

Thanks

12 REPLIES

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

Whuch WAN modules do you have in the 1600?

New Member

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

Hi, I'm not near the 1600 at the moment, all I know is it was originally on a 2mb lease line connected to a NTE device which had the fibre line connected to it which I think is just the CSU/DSU.

Can

Hall of Fame Super Bronze

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

DTE/DCE cables:

http://www.monoprice.com/products/subdepartment.asp?c_id=102&cp_id=10206

You can also find them on eBay as you stated.

Make sure to configure clocking at one end of the link (the DCE side) to bring the point-to-point connection up.

HTH,

__

Edison.

New Member

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

Thanks, what config do I need to add on the DCE router?

Hall of Fame Super Bronze

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

clock rate

See the following URL for a sample config:

http://www.cisco.com/warp/public/116/ppp_back.html

HTH,

__

Edison.

Please rate helpful posts

New Member

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

Great link, but does it matter which one is the DCE and which one is the DTE router, or is it up to me?

I have 2 routers set up without setting the clock ant I can ping from each side, should this happen eventhough I have yet to configure the clock?

Hall of Fame Super Bronze

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

The cable connection will determine which router will be the DCE and DTE. Most cable vendors will physically label it as such.

So, if you've configured 2 routers back-to-back serial and can ping without the clock being configured? That's odd.

__

Edison.

New Member

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

That's what I thought, can I run any commands to help?

I'm going to double check.

Hall of Fame Super Bronze

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

This will tell you the cable the router has detected on its end.

On this example, the connecting cable is DTE end.

Router#sh contr | i DTE|DCE

DTE V.35 TX and RX clocks detected.

DTE V.35 clocks stopped.

HTH,

__

Edison.

Please rate helpful posts

New Member

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

Strange, I get this:

LAN-Side#sh contr | i DTE|DCE

DCE 530, no clock

DCE 530, no clock

Hall of Fame Super Bronze

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

Please post the show interface from both end of this link.

__

Edison.

New Member

Re: What serial cable do I need for Lab (cisco 2600 and 1600)

...and back-to-back is the term for the DTE-DCE crossover in this case?

Thanks Edison

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