splitting ethernet connection

[JohnBu]

I want to connect two PCs at one ethernet wall port. I have a hub elsewhere.

From what I understand, you can't simply split the cable from the wall and be able to use two PCs at the same time.

However, you can hook up 2 network ports into one wall port/cable, then split the one wall port/cable back into two separate ports???

Correct?

If so, will this 99.99% work? http://www.ebay.com.au/itm/Pair-Cat5e-Network-Port-Economizer-Splitter-RJ45-UTP-/170534207006?pt=UK_Computing_Router_Modules_Cards_ Adapters&hash=item27b4a17e1e

[guy 27]

What about putting in a router? Will give you more wifi in the house as well.

[poita]

Just use a router, that way you at least know it will work

[JohnBu]

I already have a router and hub... I don't want to run another router/switch

Plus, I don't want more power supplies and boxes there.

[poita]

They are hit and miss, not guaranteed to work tbh.

[dglewis80]

If you use one at both ends it will work.

Doing something similar at work as I don't want to run anymore cables and IT won't let us run hubs.

[dglewis80]

I use these...

http://img.tapatalk.com/95879144-fb41-543e.jpg

[dglewis80]

I can get them for $4.80 each including GST

[poita]

If they work as well as you say Dave I might have to get some.

Saves running double lengths of cat5

[JohnBu]

Perfect... I just wanted to know that they work..

Who is your supplier Dave?

[dglewis80]

Perfect... I just wanted to know that they work..

Who is your supplier Dave?

My old man.

[JohnBu]

In that case I'll just get it from eBay.. wish me luck! but it should work.

[dglewis80]

In that case I'll just get it from eBay.. wish me luck! but it should work.

I know the ones I use work. If you want I can get some and I'll post them to you.

[JohnBu]

If it's not too much trouble that would be great. Let me know.

P1 seems like he wants some too...

I'll EFT the parts and postage to you.


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[dglewis80]

I'll organize this latter in the week if that's ok? Also gives people a little bit of a chance to see this if they want in.

[poita]

Will down the track, my server cabinet and Cisco switch are still sitting in the floor.

Will be a little while til I get around to wiring it all up

[JohnBu]

No rush mate


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[JohnBu]

Thanks Dave,

Unfortunately doesn't work.

It appears to be a fault with one of the Adaptors at on the computer side.

Jack 2 doesn't work.

http://img.tapatalk.com/9587936d-3194-378d.jpg

I've switched cables between Jack 1 & 2 at the computer side adaptor and confirmed it's just Jack 2 that doesn't work.

I've switched cables of Jack 1 & 2 of f the hub side adaptor and it makes no difference.

Hmmmm, I wonder where the issue lies.

[dglewis80]

This may sound like a really stupid question but are the cat 5 outlets wired correctly?

[JohnBu]

hmmm, I'm pretty sure they are.

I've swapped cat 5s on jack 1 and jack 2 on both the adaptor next to the hub and near the PCs..

Jack 1 one works perfectly on both PCs, Jack 2, doesn't work at all (even when swapping cables between Jack 1 & 2 near the hub).

When I have time, I'm going to swap the adaptors from near the hub to near the PCs to see if it makes any difference.

[dglewis80]

Can you amuse me and take photos of how you have it set up?

[JohnBu]

Here you Dave

http://img.tapatalk.com/9587932d-b626-3dfa.jpg

http://img.tapatalk.com/9587932d-b65d-f0c1.jpg

http://img.tapatalk.com/9587932d-b670-fa54.jpg

http://img.tapatalk.com/9587932d-b6ab-f127.jpg

Jack 2 just doesn't seem to work.

I've swapped Cat5 between 1&2 and also swapped the adaptor between the hub and PC.

Yes I have hooked up the Cat5 cable to the hub/switch


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[JohnBu]

Yes using the same port (3) on the PC side as the Switch side.


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[dglewis80]

http://img.tapatalk.com/9587932d-b6ab-f127.jpg

Is this the computer that is or isn't working?

[JohnBu]

Not working..

Works fine if connected to Jack 1


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[dglewis80]

That's strange as that screen shot says it's connected at 100Mbps

[JohnBu]

It has limited connectivity.

That the reason why I posted it up.. Look at the packets and 'acquiring network address'


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[poita]

I would say it's a limitation of the router.

Are you using static IP's for all of the machines?

[JohnBu]

Not a router, but a 16 port switch.

That machine is a newly introduced PC is dynamic.




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[poita]

retard, nevermind me. looked at the pics again.

so are the other machines all dynamic? or static?

have you tried giving the two machines on the splitter static ips?

[JohnBu]

The other PC has static IP, but doesn't matter, it also won't work if plugged in Jack 2.

Jack 2 won't work even if Jack 1 is isn't used, so it's not a conflicting IP issues.


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[MAD-16V]

I don't think this will work because you are splitting at the switch and not at the router ( this will cause issues with network address translation )
Any way you can run 2 lines direct from your router to the splitter?

This is the common way Ethernet splitters are used

http://oi50.tinypic.com/mvpyy0.jpg

The way you have it setup now, you are asking the switch to provide 2 IP addresses from one port - This is impossible.

[JohnBu]

In my case I don't see the difference between a router and switch iny application as the 16 port switch is connected to the router.

Impossible to have 2 IP addresses from one port, yes, but isn't that the whole point of the device, I'm 2 ports with different IP addresses from the switch going into a device which will then split the signal into 2 cat5s and IP addresses. lol

Naah can't connect the 2 ports from the router as its located elsewhere.




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[AfterBurner]

I don't think this will work because you are splitting at the switch and not at the router ( this will cause issues with network address translation )

The way you have it setup now, you are asking the switch to provide 2 IP addresses from one port - This is impossible.

I would tend to agree here...

[MAD-16V]

Impossible to have 2 IP addresses from one port, yes, but isn't that the whole point of the device, I'm 2 ports with different IP addresses from the switch going into a device which will then split the signal into 2 cat5s and IP addresses. lol


No, the point of the splitters is to combine 2 separate ports into one - And take advantage of the 8x wires inside to carry 2 "streams" of data ( this limits it to 100mbit too as 1Gbit requires all 8 wires ) what you are doing is splitting a port on a device that does not expect to see that configuration, hence the problems.

The splitters you are using are meant to be plugged into a wall socket that is RJ45 to RJ45 wired with cat5 or cat6 - This would allow you to then plug 2 lines (ports) from your switch or router into the coupler/splitter and it will carry both data streams - Then on the destination wall socket you use the second splitter and run a line to each pc and it will give them correct IP addresses.

[JohnBu]

The splitters you are using are meant to be plugged into a wall socket that is RJ45 to RJ45 wired with cat5 or cat6 - This would allow you to then plug 2 lines (ports) from your switch or router into the coupler/splitter and it will carry both data streams - Then on the destination wall socket you use the second splitter and run a line to each pc and it will give them correct IP addresses.

I'm pretty sure this is what I'm doing.

Loot at the photo's

switch - 2 cat5s - adaptor - patch panel - cat5 - rj45 wall plate- adaptor - 2 cat5s

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[JohnBu]

...

[AfterBurner]

on another note, have u verified all the ports in the netgear switch are OK?

Not uncommon for a switch to lose ports, we see it fairly often @work. A voltage spike can take them out quite easily.

[JohnBu]

Yes all ports works.. I did swap ports at the switch end to make sure, they both worked connected to Jack 1, both failed at Jack 2.





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[InsaneAsylum]

try the port doubler in another socket ie. to another location in the building. It may be that that particular wire in the wall has been punched incorrectly. Also I've seen a computer fail in exactly the same way with a patch cored wired as the 568B standard instead of the 568A. it really shouldn't matter but if anything has been wired as 568B and the port doubler isn't compatible with this standard then it may be why it's failing. I could be well of the mark, but it's something a little left field which it could well be ,seeing as it's not an obvious answer.

[hally83]

Hey mate did you get this working? Inline with what InsaneAsylum was saying - Jack 1 is a mirror of the wires needed for 100BASE-TX, whereas Jack 2 isnt. You possibly might have a fault in your run from your patch panel to your wall plate eg wires 4/5 or 7/8 (might just need re kroning at the wall plate or patch panel?). This would explain why your network would work on Jack 1 but not 2 and also would work when you just normalise it and plug 1 PC into the port and switch (1 to 1) You would be able to test this by plugging this into another port on the patch panel that is going to a seperate wall plate. HTH