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Newbie Network Question - Direct Cabling Not Working

Posted on 2004-09-15
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Last Modified: 2013-11-09
Hi,
I have a desktop, a laptop and a router. They are both connected to the router with sepaprate LAN cables, and my DSL modem is also connected to the router so I can access the internet. I set up a network so that my desktop can communicate with the laptop, and it has worked fine.

When I use a direct LAN connection between my desktop and laptop, however, both the laptop and desktop display error messages that say that a netwrok connection is unplugged. When I try to reboot with the cable connected btwenn the desktop and laptop I am still getting the error message. Shouldn't they be able to communicate with the cable directly connected between them?

Thanks in advance,
njb
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Question by:njb
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Justin Durrant earned 150 total points
ID: 12066787
Hi njb,


You need to use a crossover cable for the direct connect

JJ
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Expert Comment

by:mattisflones
ID: 12066836
Thats right, youll need a crossover cable.. It looks exactly the same as any other network cable, but inside two of the pairs is switched..
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by:Pete Long
Pete Long earned 50 total points
ID: 12066838
Networking Two Pc's with a crossover cable

Here what a crossover looks like and how it differs from a
straight through cable
http://www.makeitsimple.com/how-to/dyi_crossover.htm

OR my website :0)
http://homepage.ntlworld.com/pete.long007/patchlead.htm



*****Setting up on XP*****

Basic XP Home Networking Guide - How To Network Two PC's
http://www.tweakhound.com/xp/basicxpnet/basicXPnet1.htm

Description of File Sharing and Permissions in Windows XP
http://support.microsoft.com/default.aspx?scid=kb;EN-US;304040

*****General Info*****

http://www.bytescribe.com/support/networking.htm

http://theresourcefork.com:81/WWWserver/techinfo/Build_Your_Own_Crossover_Cable/index.shtml#chap4 (Good site with Networking info & Illustrations)

http://www.nuevaecija.net/articles/CrossOver/crossover.php

How to set up a home network without using a hub
http://www.comusolv.com/support/printmodule/network_with_no_hub.htm

Setting up a home network between two computers
http://www.epinions.com/cmd-review-41D6-5C355BF-39FBC8A4-prod1

*****Networking Hardware*****

Home Network Kit
http://www.bobtailed.co.uk/html/home_network_kit.html
0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
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Expert Comment

by:rid
ID: 12067464
Why on earth would you need to connect the machines with a crossover cable when they can connect through the router/switch as you state in your post?
/RID
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Expert Comment

by:mikeleebrla
ID: 12069029
i agree with rid 100%.  a crossover is for connecting 2 PCs together, uplinks between switches/hubs, or interfaces between routers, NOT for connecting a PC to a router which is your situation.  Why are you trying to directly connect the 2 PCs together??  The correct way is to have them both plugged into your Router as you mentioned.
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by:scholarlv
ID: 12069256
LOL
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by:mikeleebrla
ID: 12069304
was "LOL" supposed to contribute something to this discussion?
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Author Comment

by:njb
ID: 12070564
I aplologize if I wasn't clear about what I was trying to accomplish. I am trying to connect the 2 computers together *without going through the router*. I am curious to see if I could connect the 2 machines directly together and continue to have a network between my laptop and desktop in case my router ever went down.

Now that I have clarified my intent, does that mean that the crossover cable is the way to go? Also, can I just purchase one (a crossover cable) andjust connect the machines  or will I have to modify anything or any settings?

Thanks,
njb


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Assisted Solution

by:mattisflones
mattisflones earned 50 total points
ID: 12070585
Yes, a crossover cable wil make you able to do that..
If your computers gets their Ip-adress and so on from a DHCP (automativally) today, you will have to set that up manually to achieve connections.. ex:
Computer1: IP=192.168.0.1 and Subnet=255.255.255.0
Computer2: IP=192.168.0.2 and Subnet=255.255.255.0
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by:mattisflones
ID: 12070596
You can get a crossover cable in most stores that sells networkcables. (Remember to tag it so you dont mix it up with ordinary cables later! Thats rally anoying!)
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by:abu_deep
ID: 12072834
you could  do it your self just have a look at http://www.duxcw.com/digest/Howto/network/cable/index.htm it will show u a handy dandy way to make it.....it least you could gain some experience by doing it by your hand
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by:Pete Long
ID: 12104505
ThanQ
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