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  #1 (permalink)  
Old 11-08-2008, 10:13 AM
Okto
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Default Wireless Relay?

Hi All,

Newbie on this group but do have some computer savvy.

I have a Netgear Wireless Router and Access point in an office building
which is seperate from my house. I run all the computers in the office wired
but have an extension running the antennae out to the guttering of the
office building.

I dont have a phone line in my house but can pick up from the wireless
antennae through another antennae on the outside of the house which runs,
via an extension, into the wireless adaptor on the computer in my house.

Now, I would like to move the computer to another part of the house and I
can not run a cable to it there as the house is rented and i cant put any
cable pins in/it would be too messy etc.

What I wondered is, is there a device I can use in the house to pick up the
wireless signal from the office router/access point which will then relay it
to the computer in another part of the house with a wirless card and
antennae. I'm not sure excactly what I need for this and know I could spend
80 pounds on a bit of kit that doesnt do the job right so was hoping someone
on here could help me with this.

Here's hoping,

Paul



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  #2 (permalink)  
Old 11-08-2008, 12:28 PM
Bill Kearney
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Default Re: Wireless Relay?

Use another wifi router in your house to rebroadcast the signal. That is,
connect wirelessly as a client to the office. Wire a connection to another
wifi router. Connect wirelessly to that.

You can configure something like WRT54G using DD-WRT firmware to allow it to
act as a client.


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  #3 (permalink)  
Old 11-09-2008, 03:33 PM
seaweedsl
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Default Re: Wireless Relay?

On Nov 8, 7:28*am, "Bill Kearney" <wkearne...@hotmail.com> wrote:
> Use another wifi router in your house to rebroadcast the signal. *That is,
> connect wirelessly as a client to the office. *Wire a connection to another
> wifi router. *Connect wirelessly to that.
>
> You can configure something like WRT54G using DD-WRT firmware to allow itto
> act as a client.


Yep. Get a WRT54GL and put DD-WRT on it. From there, you could use
it as a repeater bridge and cable up to five computers off of it's
ethernet ports as well as repeating the wifi from that point.

Or better yet, as Bill suggests, wire an AP (yet another device) and
cable from the (now setup as a) client bridge to the AP which is
located in a more optimum position for the pcs in your house.

Method #1 (repeater bridge ) is cheaper, but with more limitations.
Method #2 (client bridge >ethernet cable> AP) requires more devices,
more likely to function and cover well.


Steve

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  #4 (permalink)  
Old 11-10-2008, 04:07 PM
TheDragon
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Default Re: Wireless Relay?


"seaweedsl" <seaweedsteve@gmail.com> wrote in message
news:8fe21b6a-bffb-44d2-be8d-681aff9329d6@c2g2000pra.googlegroups.com...
On Nov 8, 7:28 am, "Bill Kearney" <wkearne...@hotmail.com> wrote:
> Use another wifi router in your house to rebroadcast the signal. That is,
> connect wirelessly as a client to the office. Wire a connection to another
> wifi router. Connect wirelessly to that.
>
> You can configure something like WRT54G using DD-WRT firmware to allow it
> to
> act as a client.


Yep. Get a WRT54GL and put DD-WRT on it. From there, you could use
it as a repeater bridge and cable up to five computers off of it's
ethernet ports as well as repeating the wifi from that point.

Or better yet, as Bill suggests, wire an AP (yet another device) and
cable from the (now setup as a) client bridge to the AP which is
located in a more optimum position for the pcs in your house.

Method #1 (repeater bridge ) is cheaper, but with more limitations.
Method #2 (client bridge >ethernet cable> AP) requires more devices,
more likely to function and cover well.


Steve

Method 2 2nd'ed

I have setup several installations just like this.

For 80 quid, you could get a LinkSys WRT54GL £45 in the UK from Amazon. Then
any el cheapo AP for the 2nd part. Cable is very cheap to connect the pair
together.

For Method 1, A single WRT54GL will do it, but will be slow



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  #5 (permalink)  
Old 11-10-2008, 07:48 PM
seaweedsl
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Default Re: Wireless Relay?

Personal email received on this topic:

Quote (from OP? - not sure):

I think method one sounds best as I dont think there will be a problem
with signal in the house. I dont want ANY cables in the house, just
the one from the external antennae to the reeater device

I have had a look at the WRT54GL. It has two antennae. Can I connect
one to a cable to the outdoor antennae and rely on the other one for
the indoor signal?


Answer from me:

No, it does not work in the way you are imagining. The diversity
antennae both need to work with the same signal at any given time - if
you seperate them in some way, then they will get confused an things
will go weird. If you want to connect an antenna cable to the router,
you can simply use one of the connectors and remove the other. Then,
in the router software, disable the disconnected antenna. Or let it
choose automatically, it should be fine.

On the other hand, referring to the idea of using the WRT54GL as a
repeater is still equally workable. It's just that it has nothing to
do with the number of antennas. Other routers with one antenna will
do the same.

The most important part for a single device repeater is that the
antenna (or antennas) have to have be able to "see" both sides of
what they are repeating to. You must find a location that sees the
main router and also covers your local area to be repeated to. I'm
struggling to make that work right now for a client. It's easy to get
a view to his house, but then the view to the main router is blocked,
and vice-versa.

With the two device system (as suggested by Bill and TheDragon), you
can optimize the type and location of the antenna for the client
bridge for seeing the main router and then you run an ethernet cable
to the indoor AP and put that where it works best for the pcs in that
area. Each can do their own job better.

The cable can be just long enough to come inside the house or can be
up to 100 meters long. It does not have to run to every computer,
just to one central Access Point.

Or, if you are willing to spend more, get a pair of powerline adapters
(search this group) to run the signal from the client bridge to the AP
via your power sockets instead of using an ethernet cable.

Another comment: I don't know what the length or type of outdoor
antenna you are planning to use, but one should be careful about
signal loss in antenna cables. It's an often overlooked problem.
Best to locate the router where the antenna needs to be, or else make
sure you are using a low loss cable for your given length.

Final comment. Single radio repeaters cut throughput in half and
things get messier as you add clients. That's the short story, Jeff L
or others can fill you in. It's not a fatal problem, but I'd only use
a repeater like that for one or two clients, not more.



To sum things up: If you want, go ahead and use the WRT54GL on DDWRT
as a single radio repeater IF you can see both sides of the network
from where you locate it. Do not try to use two antennas to somehow
compensate for needing them in different places.

If this won't provide the coverage you need, then get a second router/
AP (cheapo will do) and run an ethernet cable from one to the other
instead of an antenna cable.

Hope this somehow makes things clearer.

Steve

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  #6 (permalink)  
Old 11-10-2008, 07:51 PM
seaweedsl
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Default Re: Wireless Relay?

One more comment: I'm not positive that the DDWRT enhanced router
will allow you to use WPA security (highly recommended) when repeating
(repeater bridge mode) from a non-DDWRT router. You might want to go
to the DDWRT site and research that.

As a client bridge, it should work fine.

Steve

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  #7 (permalink)  
Old 11-11-2008, 10:48 AM
TheDragon
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Default Re: Wireless Relay?


"seaweedsl" <seaweedsteve@gmail.com> wrote in message
news:b246c37b-df94-43c5-9c9e-c87768c1742c@a3g2000prm.googlegroups.com...
> One more comment: I'm not positive that the DDWRT enhanced router
> will allow you to use WPA security (highly recommended) when repeating
> (repeater bridge mode) from a non-DDWRT router. You might want to go
> to the DDWRT site and research that.
>
> As a client bridge, it should work fine.
>
> Steve


Not tried WPA in repeater mode, but it defiantly works in Client bridge &
client router modes.





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  #8 (permalink)  
Old 11-11-2008, 03:39 PM
seaweedsl
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Default Re: Wireless Relay?

On Nov 11, 5:48*am, "TheDragon" <Respond_To_News_o...@gmail.com>
wrote:
> "seaweedsl" <seaweedst...@gmail.com> wrote in message
>
> news:b246c37b-df94-43c5-9c9e-c87768c1742c@a3g2000prm.googlegroups.com...
>
> > One more comment: *I'm not positive that the DDWRT enhanced router
> > will allow you to use WPA security (highly recommended) when repeating
> > (repeater bridge mode) *from a non-DDWRT router. *You might want togo
> > to the DDWRT site and research that.

>
> > As a client bridge, it should work fine.

>
> > Steve

>
> Not tried WPA in repeater mode, but it defiantly works in Client bridge &
> client router modes.


I've got WPA working in repeater bridge mode with V24, but it's
repeating from a ddwrt router/AP. There is a tutorial somewhere for
"universal repeater" settings on ddwrt, which is where I'd look first
to sort it out.

Steve

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