Home wiring question

[TJN23]

Before we got cable internet, i installed 2 CAT5e jacks, connected directly to each other.

The jack in my room is wired 568A and it goes up the wall, into the attic, over, and down to my brothers room, where it is wired 568B. From each of our NICs we plug a crossover cable into each jack and we are able to game, share files, etc.

We just got cable internet, and i'd like to share it to his PC with a DI-604 router using this same setup, except altered a little bit.

If I keep the 568A in my room, change his to 568A, and plug straight-thru's from NIC to each jack, why can't I see any green lights? Wouldn't this work? The patch cables I have say 568A on them as well.

I've done loopback pings and both NICs are fine.

TIA

Tim

 

[ScottMac]

Each PC must plug into the hub/switch if you're using straight-through cabling between the jacks.

Like: PC ---jumper --Switch/Hub ----------cable in the wall ---- PC

Sharing or not, if you connect two PCs together NIC-to-NIC, you need a crossover Ethernet cable.

It is recommended that you leave the cable in the wall as straight-through, and use jumpers to do the crossover.

Good Luck

Scott

 

[JackMDS]

I got dizzy from trying to follow your acrobatic with the CAT. (j/k)...

Cable Modem to WAN should be what ever came with the modem

Each computer should use straight patch to the Router?s switch.

If the wall is currently straight then it should work.

BTW. In your first arrangement if the wall was crossover you could use two straight cables from the wall to the computers. The reason that it worked is because you use two crossover patches that basically cancelled themselves out.

Link: AnandTech - FAQ. CAT5 Straight, Crossover. What is CAT5, which one should I Use?

 

[WTT0001]

Ditto on jacks reply, anyway, swap the in-wall both to 568B, use a straight through cable on both sides of it (one to your pc and one to one of the ports on the router) and use a straight through from the router to his pc, set it up and enjoy

 

[TJN23]

Originally posted by: WTT0001
Ditto on jacks reply, anyway, swap the in-wall both to 568B, use a straight through cable on both sides of it (one to your pc and one to one of the ports on the router) and use a straight through from the router to his pc, set it up and enjoy

so what youre saying is:
having both jacks wired for 568B, then using two straight thru 568A cables ?

router--->straight thru 568A--->first 568B jack--->second 568B jack--->straight-thru 568A--->his NIC

 

[JackMDS]

Originally posted by: TJN23[/iso what youre saying is:
having both jacks wired for 568B, then using two straight thru 568A cables ?

router--->straight thru 568A--->first 568B jack--->second 568B jack--->straight-thru 568A--->his NIC

Yeah, if the wiring was done correctly this should work.

 

[TJN23]

Thanks Jack, I'll reply back tomorrow when I give it a try. This is not what I currently have wired.

Tim

 

[tdowning]

right. 568a and 568b are just color codes. and if you use a on one end and b on the other, you get a crossover cable.

It really doesn't matter how you wire your jacks or cables as long as they are straight thru, and you get the twists right. the fact that it's twisted, allows it to cancel out most minor interference.

IIRC, the A code is normally used for ISDN, and the B code is used for ethernet, but as long as they are made with Category 5 you'll be fine.

 

[DurocShark]

There *is* a way to do it without a hub/switch: 2 nic cards in one of the machines. You can keep the crossover you've been using, have the machine with 2 cards handle the cable modem, and use internet connection sharing (or linux's version, whatever it's called) to feed the other machine. Of course, if you do this you can only have as many PC's as you have network cards...

 

[TJN23]

Everything's lookin' good guys, thanks for the help

p.s. ICS stinks