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Odd Apple Airport network configuration advice

Hi - my boss has extended his property and wants me to solve the following networking conundrum.

He started out with an Airport basestation connected to a small hub, which in turn is connected to an ADSL router. His wired computers attach to the hub, his wireless computers connect to the Airport network (they're Macs).

He has now had an office built about 100ft from his house and during construction had a CAT5e cable run through trunking between his house and the new office. He will be connecting another Airport to the office end of the new cable to serve the computers running there.

This would have been a simple job if only the end of the new CAT5e cable was near his existing hub - but of course they are nowhere near each other, one is upstairs, one is downstairs.

So, what I need to know is...

Can I attach a third Airport to house end of the new cable to join the new cable to the new cable? The connection from a computer in the office would then be like this...

Wireless across the office
Cabled between the two buildings
Wireless through the house
Cabled to the ADSL line

Is this going to work?

I had alternatively considered extending the range of the wireless network and not use the new cable at all. How do I do this with an Airport setup? I have read Apple's wireless network design guide, and I think the nearest config they suggest is what they call roaming - but from their diagrams it looks like all the Airports need to be hooked up to a wired network - which isn't possible in this case.

Thanks for your help in advance.
Cheers
Ted
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TedMorey
Asked:
TedMorey
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1 Solution
 
Rick HobbsRETIREDCommented:
Yes, it should work fine.
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Rick HobbsRETIREDCommented:
I just verified that.  The only issue is where you connect it.  You probably will need a router.  It would look like this:

ADSL---------router------switch-------------Airport
                                         |
                                         |
                                         |
                                    Airport.
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TedMoreyAuthor Commented:

Aha - drawing network diagrams using characters - great idea (I'll join in)!

What you've drawn is not quite the setup I'm describing, here's what I mean....

ADSL with built-in router--(wire)---switch--(wire)--Airport#1 in house--(wireless)--Airport#2 in house--(wire)--Airport#3 in office--(wireless)--computer

...is this OK?

Thanks
Ted
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Rick HobbsRETIREDCommented:
Should work fine.  You may have to set different IP addresses on all the Airports.  One question.   Why is there a switch between the ADSL router and the first Airport?   It shouldn't be necessary.
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TedMoreyAuthor Commented:
>> One question. Why is there a switch between the ADSL router and the first Airport?

Because I am going mad - the correct config is...
ADSL with built-in router--(wire)--Airport#1 in house--(wireless)--Airport#2 in house--(wire)--Airport#3 in office--(wireless)--computer

>> You may have to set different IP addresses on all the Airports.

Can you elaborate a little - currently the router is providing DHCP. What addresses will need to set where? Is there a nifty config guide from Apple somewhere?

Last point, sorry...

Only the first Airport in the house exists at the moment. I'm going to buy #2 and #3 - do a need a particular model, Apple seem to do several.

Thanks
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Rick HobbsRETIREDCommented:
It depends on what model Airport you have.  Airport card, Airport  Express base station, ...  This link: http://wireless-starter-kit.com/airportblog/  has been dedicated to the Airport system for quite a while and has a book for $10 that is supposed to be everything you ever wanted to know....
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Rick HobbsRETIREDCommented:
Glad I could help you out.  Thanks!
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