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I have a network with DHCP from the WirelessRouter.

----<WirelessRouter/Router>----<-100meters->----<?ANOTHER ROUTER?>-----to other computers
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----Connected to other computers

For the 100 meters, I use copper wire. Do I need to use a crossover setup for RJ45? Or can I just use the standard setup of RJ45?

Here in my house, I already set up the 100 meters with a standard setup, in which if we remove the <?ANOTHER ROUTER?>, the 100 meters will connect directly to one computer only.

I want to add some routers there, but my instructor said that a standard setup of RJ45 will not work for router-to-router here.

Maybe I missed something above, I forgot what a crossover setup or a standard setup is. I assume that crossover is for router-to-router or a computer-to-computer connection. Correct me if I'm wrong.

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"Newer routers, hubs and switches (including some 10/100, and all 1 Gigabit or 10 Gigabit devices in practice) use auto-MDIX to automatically switch to the proper configuration once a cable is connected." Auto-MDIX wikipedia article –  Ampersand Nov 21 '11 at 18:31

1 Answer 1

Just remember simple rule:

when the devices are same, then crossover cable is used.

when devices are different, Straight cable is used.

so for router-to-router we need crossover cable.

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Does it matter on which port is use to connect router and which port is use to connect PC? –  huahsin68 Feb 14 at 8:40
    
usually not. only,when there is VLAN setup –  Farhan Feb 15 at 14:19

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