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From: Justin on 10 Jun 2010 16:57
I'm looking for a way to share a wireless Internet connection using my
MBP running Snow Leopard. The problem is, I don't have Ethernet access.
The Internet connection is *all* 802.11.
I figure I can get one of those USB 802.11 adapters, use one to share
the connection, and the other to receive. So my first question is,
which one should I get?

So basically my goal is to share the Airport Connection, using the
second USB connection. Can I do that?

Thanks!

J
From: Geoffrey S. Mendelson on 10 Jun 2010 17:14
Justin wrote:
> I'm looking for a way to share a wireless Internet connection using my
> MBP running Snow Leopard. The problem is, I don't have Ethernet access.
> The Internet connection is *all* 802.11.
> I figure I can get one of those USB 802.11 adapters, use one to share
> the connection, and the other to receive. So my first question is,
> which one should I get?
>
> So basically my goal is to share the Airport Connection, using the
> second USB connection. Can I do that?


Why? If your airport connects to the internet, why can't you just have a
second computer on the same wifi network? If you want to share printers or
files across the wifi network you can do it as if they are all connected to
the same ethernet.

If you could figure out how to get your Mac to do what you ask, you are
going to have two problems. No matter how you do it, your Mac will take in
a packet of data and send it out again, cutting the speed of the network in
half for the second computer.

The second is that they will interfere with each other, so you have one
put them on separate channels (at least one apart) or one on 2.4 and the
other on 5.8 gHz (if legal where you are) and physically separate them
by several feet.

I do something similar with a wifi cardbus card (faster than the
internal airport card) and a bluetooth dongle on an old G4 powerbook.
They both use 2.4gHz, and if I have them both on the computer, I have
trouble accessing a wifi network 15 feet away.

Putting the dongle on the far end of a 1m USB extension cord fixed the problem.

If you can only have one computer on the wifi network, or you need to run
tunneling (VPN) software, consider getting a router instead and using
it to access the network though the Wifi and providing you with 4 ethernet
ports.

Note that not all routers can do this and most can not do tunneling via
the Wifi port.

Geoff.


--
Geoffrey S. Mendelson, Jerusalem, Israel gsm(a)mendelson.com N3OWJ/4X1GM
I do multitasking. If that bothers you, file a complaint and I will start
ignoring it immediately.
From: nospam on 10 Jun 2010 17:28
In article <slrni12lb6.773.gsm(a)cable.mendelson.com>, Geoffrey S.
Mendelson <gsm(a)cable.mendelson.com> wrote:

> > I'm looking for a way to share a wireless Internet connection using my
> > MBP running Snow Leopard. The problem is, I don't have Ethernet access.
> > The Internet connection is *all* 802.11.
> > I figure I can get one of those USB 802.11 adapters, use one to share
> > the connection, and the other to receive. So my first question is,
> > which one should I get?
> >
> > So basically my goal is to share the Airport Connection, using the
> > second USB connection. Can I do that?
>
> Why? If your airport connects to the internet, why can't you just have a
> second computer on the same wifi network? If you want to share printers or
> files across the wifi network you can do it as if they are all connected to
> the same ethernet.

most likely it's because the wifi network is paid and tied to a single
mac address, such as a wifi hotspot in a hotel.

> If you could figure out how to get your Mac to do what you ask, you are
> going to have two problems. No matter how you do it, your Mac will take in
> a packet of data and send it out again, cutting the speed of the network in
> half for the second computer.

that's probably an acceptable tradeoff.

> The second is that they will interfere with each other, so you have one
> put them on separate channels (at least one apart) or one on 2.4 and the
> other on 5.8 gHz (if legal where you are) and physically separate them
> by several feet.

not necessarily. using a usb wifi stick and setting them to channels
far enough apart should suffice.

i have a linksys router that can join one wifi network and rebroadcast
it on another. it's about the size of an ipod classic and fantastic for
traveling.

> If you can only have one computer on the wifi network, or you need to run
> tunneling (VPN) software, consider getting a router instead and using
> it to access the network though the Wifi and providing you with 4 ethernet
> ports.
>
> Note that not all routers can do this and most can not do tunneling via
> the Wifi port.

all the ones i've ever used do.
From: Justin on 10 Jun 2010 19:57
On 06/10/2010 05:41 PM, Michelle Steiner wrote:
> In article<hurjit$5mu$2(a)news.eternal-september.org>,
> Justin<justin(a)nobecauseihatespam.com> wrote:
>
>> I'm looking for a way to share a wireless Internet connection using my
>> MBP running Snow Leopard. The problem is, I don't have Ethernet access.
>> The Internet connection is *all* 802.11.
>
> Why can't the other party just log on, too? Does your WiFi router limit
> you to only one connection?
>

Yes, if somebody else logs on using the same account the other machine
gets disconnected.
From: Justin on 10 Jun 2010 20:02
On 06/10/2010 05:14 PM, Geoffrey S. Mendelson wrote:
> Justin wrote:
>> I'm looking for a way to share a wireless Internet connection using my
>> MBP running Snow Leopard. The problem is, I don't have Ethernet access.
>> The Internet connection is *all* 802.11.
>> I figure I can get one of those USB 802.11 adapters, use one to share
>> the connection, and the other to receive. So my first question is,
>> which one should I get?
>>
>> So basically my goal is to share the Airport Connection, using the
>> second USB connection. Can I do that?
>
>
> Why? If your airport connects to the internet, why can't you just have a
> second computer on the same wifi network? If you want to share printers or
> files across the wifi network you can do it as if they are all connected to
> the same ethernet.

Because it is a hotel network with one account. If somebody else signs
on with the same account the first guy gets knocked offline - to the
login page. This has happened more times than I can count.
For example, I'll be on a webpage, click on a link and be greeted with
the login page.

>
> If you could figure out how to get your Mac to do what you ask, you are
> going to have two problems. No matter how you do it, your Mac will take in
> a packet of data and send it out again, cutting the speed of the network in
> half for the second computer.

Why would the speed be cut in half? I want the Mac to act as a router,
routers don't cut speed in half.

>
> The second is that they will interfere with each other, so you have one
> put them on separate channels (at least one apart) or one on 2.4 and the
> other on 5.8 gHz (if legal where you are) and physically separate them
> by several feet.

Or I can have on on channel 1, the other on channel 6 or 11.

>
> I do something similar with a wifi cardbus card (faster than the
> internal airport card) and a bluetooth dongle on an old G4 powerbook.
> They both use 2.4gHz, and if I have them both on the computer, I have
> trouble accessing a wifi network 15 feet away.
>
> Putting the dongle on the far end of a 1m USB extension cord fixed the problem.
>
> If you can only have one computer on the wifi network, or you need to run
> tunneling (VPN) software, consider getting a router instead and using
> it to access the network though the Wifi and providing you with 4 ethernet
> ports.

I can't do that. The router needs to have the ability to bring up a
webpage and login via the web interface.

>
> Note that not all routers can do this and most can not do tunneling via
> the Wifi port.
>
> Geoff.
>
>

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