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[OT] PC help needed

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  #11  
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a_Frank
 
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Default Re: [OT] PC help needed - 05-10-2007 , 02:18 PM






On 10 May 2007 11:07:21 GMT, "Paul-B" <paul (AT) rasf1 (DOT) net> wrote:

Quote:
You need a Wireless Access Point, which you can connect to one of the
ethernet ports on your router. Personally I wouldn't go for Belkin (I
don't like their stuff), I'd recommend something like the Netgear
WG602, which I've used many times. If you buy one from Aria and pay by
Google checkout you get £10 off your order so the price is £26.90 inc
VAT

http://netgear2007.notlong.com

If you really want Belkin Aria do the 54Mb model for £34.02, £24.02 if
tou pay using Google checkout

http://Belkin2007.notlong.com

Don't forget to secure your network, I tend to use WPA as it's a lot
more secure than WEP.

With encryption(either type) and i assume more re-sends, what sort of
*real* bandwidth do you get from that 54Mb ?

We were at a mate's place for a house warming last week. He can't get
cable or ADSL2 there, so had to settle for a (up to)1500Mb ADSL
connection, going through a 54Mb wireless to his laptop.
He asked me to see what i think and how to check speeds, so i fired up
Netspeed and it gave me 200Kb/s down from the local server.
What i thought of that is too obvious to mention<g>, though he must
have some other issues. It surely can not be that crap ?

--

Regards, Frank


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  #12  
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a_Frank
 
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Default Re: [OT] PC help needed - 05-10-2007 , 02:36 PM






On Fri, 11 May 2007 05:18:28 +1000, a_Frank
<fajp (AT) notthis (DOT) optushome.com.au> wrote:

Quote:
He asked me to see what i think and how to check speeds, so i fired up
Netspeed and it gave me 200Kb/s down from the local server.

^^^^^^^^ Whooops. That should've been "speedtest", as in
speedtest.net.

--

Regards, Frank


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  #13  
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Phil Carmody
 
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Default Re: [OT] PC help needed - 05-10-2007 , 02:55 PM



a_Frank <fajp (AT) notthis (DOT) optushome.com.au> writes:
Quote:
On 10 May 2007 11:07:21 GMT, "Paul-B" <paul (AT) rasf1 (DOT) net> wrote:
With encryption(either type) and i assume more re-sends, what sort of
*real* bandwidth do you get from that 54Mb ?
Encryption defeats part of its purpose if it expands its data
stream. (As that would introduce redundancy, and weaken it.)
So there _shouldn't_ be any additional overhead.

There will be some initial latency issues, but those should
be negligible.

Phil
--
"Home taping is killing big business profits. We left this side blank
so you can help." -- Dead Kennedys, written upon the B-side of tapes of
/In God We Trust, Inc./.


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  #14  
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Phil Newnham
 
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Default Re: [OT] PC help needed - 05-10-2007 , 03:05 PM



Paul-B wrote:
Quote:
peter wrote:

Phil Newnham <pnewnham (AT) yahoo (DOT) com> writes
peter wrote:
I've just bought a (WiFi) laptop for my daughter to take to Uni
but in the meantime I want to hook it up to my home LAN.
I have:
NTL cable modem connected to a
Belkin 4 port Cable/DSL gateway router with wired connection to
two PCs. What the minimum Wifi gadgetry I need to plug into the
router so that the Laptop can use the Internet connection?
You want a wireless access point, eg.

http://www.dabs.com/ProductView.aspx...tegorySelected
I d=11178&NavigationKey=11178,50909&InMerch=1

http://tinyurl.com/yvnrdp

You don't have to buy Belkin but I guess you're familiar with the
brand and the interface. Once you've got it, configure it and the
laptop to use whichever flavour of WPA they're both happy with.
Don't run it without security and don't use WEP, it's rubbish. WPA
with a 20+ character key is the way.

Thanks Phil and Paul for the info...
In addition someone might give me a normal Wireless router would this
plug this into my Belkin gateway router in the same way?

Yes. The router bit works seperately from the modem bit (techspeak!!!)
Can you really? That's useful to know. By plugging a LAN port of the
wireless router into one of the ports on the wired router? I might be
able to do that when I move house, in that case. I would've thought the
routers would fight each other for control of the network.

--
Phil

http://www.flickr.com/photos/tmc1979/


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  #15  
Old   
Phil Newnham
 
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Default Re: [OT] PC help needed - 05-10-2007 , 03:10 PM



Phil Carmody wrote:
Quote:
a_Frank <fajp (AT) notthis (DOT) optushome.com.au> writes:
On 10 May 2007 11:07:21 GMT, "Paul-B" <paul (AT) rasf1 (DOT) net> wrote:
With encryption(either type) and i assume more re-sends, what sort of
*real* bandwidth do you get from that 54Mb ?

Encryption defeats part of its purpose if it expands its data
stream. (As that would introduce redundancy, and weaken it.)
So there _shouldn't_ be any additional overhead.
There is an additional overhead with WEP encryption (which is one of the
reasons it's crap). With WPA-PSK encryption, which is the one I have
running on mine, there's no overhead and also the encryption/decryption
is all handled by the network card, rather than with WEP where it is
often handled by the CPU.

Quote:
There will be some initial latency issues, but those should
be negligible.
I've not run a speed test with/without encryption but I don't notice any
significant issues downloading big files over wireless vs. wired
(desktop machine with 100BaseT). At the end of the day you /could/
overload a 54Mb wireless lan if you had enough machines on it talking to
each other, but you're unlikely to max it out if they're all trying to
talk to the internet via a 2Mb broadband connection. One way to slow
down wireless networks is to use an old 802.11b device, which will mean
the access point switches to 10Mb for all devices whether they can use
54Mb 802.11g or not.

--
Phil

http://www.flickr.com/photos/tmc1979/


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  #16  
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a_Frank
 
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Default Re: [OT] PC help needed - 05-10-2007 , 03:27 PM



On 10 May 2007 20:08:32 GMT, "Bigbird" <bigbird.usenet (AT) gmail (DOT) com>
wrote:

Quote:
We were at a mate's place for a house warming last week. He can't get
cable or ADSL2 there, so had to settle for a (up to)1500Mb ADSL

not 1.5Mb?

Eh. Not yet adequately caffinated brain fade.
Yep, 1500Kb it is, which will make my question about any drop of speed
over the 54Mb somewhat..um, irrelevant.

--

Regards, Frank


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  #17  
Old   
Graham Hodgson
 
Posts: n/a

Default Re: [OT] PC help needed - 05-10-2007 , 03:35 PM



Phil Newnham wrote:
Quote:
Paul-B wrote:
Don't forget to secure your network, I tend to use WPA as it's a lot
more secure than WEP.

Someone (probably the technology guy on the BBC website) said you can
download a tool off the internet easily that will crack a WEP encrypted
network in a matter of hours, but if you use 20 random characters for
your WPA key, a dictionary attack would take longer to complete than the
history of the known universe.

kismet, airsnort, aircrack, nessus, tcpdump are some of your friends if
you want to look into securing your wireless (not sure which of these is
available for Windows). There's a Linux bootable CD distro called
BackTrack that has a bunch of wireless (and wired) sniffing and cracking
tools ready to go. If you're feeling particularly geeky you could look
at securing it using RADIUS to authenticate to an LDAP backend and have
the AP attached to a separate interface on your router poking holes
where necessary in your firewall to allow traffic onto the rest of your
LAN...

--
Cheers
Graham

Make a little birdhouse in your soul...


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  #18  
Old   
Paul-B
 
Posts: n/a

Default Re: [OT] PC help needed - 05-10-2007 , 04:07 PM



Phil Newnham wrote:

Quote:
Paul-B wrote:
peter wrote:

Phil Newnham <pnewnham (AT) yahoo (DOT) com> writes
peter wrote:
I've just bought a (WiFi) laptop for my daughter to take to
Uni but in the meantime I want to hook it up to my home LAN.
I have:
NTL cable modem connected to a
Belkin 4 port Cable/DSL gateway router with wired connection
to two PCs. What the minimum Wifi gadgetry I need to plug
into the router so that the Laptop can use the Internet
connection?
You want a wireless access point, eg.

http://www.dabs.com/ProductView.aspx...7&CategorySele
cted I d=11178&NavigationKey=11178,50909&InMerch=1

http://tinyurl.com/yvnrdp

You don't have to buy Belkin but I guess you're familiar with
the brand and the interface. Once you've got it, configure it
and the laptop to use whichever flavour of WPA they're both
happy with. Don't run it without security and don't use WEP,
it's rubbish. WPA with a 20+ character key is the way.

Thanks Phil and Paul for the info...
In addition someone might give me a normal Wireless router would
this plug this into my Belkin gateway router in the same way?

Yes. The router bit works seperately from the modem bit
(techspeak!!!)

Can you really? That's useful to know. By plugging a LAN port of the
wireless router into one of the ports on the wired router? I might be
able to do that when I move house, in that case. I would've thought
the routers would fight each other for control of the network.
What do you mean by "control of the network"? You set one router to be
the DHCP server (if you use dynamic i/p addresses for the machines on
you network) and turn DHCP server off on the other.

A modem/router is just that, a router with a built-in modem. Both work
independantly of each-other.

Incidentally, a tip... if you are going to buy a modem/router, go for
the Rolls-Royce, Vigor. You can pick them up at a fraction of their new
prices from eBay. I just bought 2 Vigor 2600 modem/routers, with the
built-in VPN servers, for £30-odd from eBay; these things cost £120+
from Draytek, and I haven't had a bad one yet!

--
Paul-B Formula 1 - cheat-free version here now.


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  #19  
Old   
Phil Newnham
 
Posts: n/a

Default Re: [OT] PC help needed - 05-10-2007 , 04:27 PM



Paul-B wrote:
Quote:
What do you mean by "control of the network"? You set one router to be
the DHCP server (if you use dynamic i/p addresses for the machines on
you network) and turn DHCP server off on the other.
I'll have to look at the instructions again. It's more the built in IP
addresses that was worrying me but I think it must be possible to change
the IP of the router.

Quote:
A modem/router is just that, a router with a built-in modem. Both work
independantly of each-other.
Ok.

Quote:
Incidentally, a tip... if you are going to buy a modem/router, go for
the Rolls-Royce, Vigor. You can pick them up at a fraction of their new
prices from eBay. I just bought 2 Vigor 2600 modem/routers, with the
built-in VPN servers, for £30-odd from eBay; these things cost £120+
from Draytek, and I haven't had a bad one yet!
I'm never quite convinced by this kind of thing - surely they must've
fallen off the back of a lorry, at that price?!

--
Phil

http://www.flickr.com/photos/tmc1979/


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  #20  
Old   
Paul-B
 
Posts: n/a

Default Re: [OT] PC help needed - 05-11-2007 , 01:28 AM



Phil Newnham wrote:

Quote:
Paul-B wrote:
What do you mean by "control of the network"? You set one router to
be the DHCP server (if you use dynamic i/p addresses for the
machines on you network) and turn DHCP server off on the other.

I'll have to look at the instructions again. It's more the built in
IP addresses that was worrying me but I think it must be possible to
change the IP of the router.

Yep. I've yet to find a router where you can't change the ip/subnet
mask. I do it all the time when I have to plug a router into an
existing network.

Quote:
A modem/router is just that, a router with a built-in modem. Both
work independantly of each-other.

Ok.

Incidentally, a tip... if you are going to buy a modem/router, go
for the Rolls-Royce, Vigor. You can pick them up at a fraction of
their new prices from eBay. I just bought 2 Vigor 2600
modem/routers, with the built-in VPN servers, for £30-odd from
eBay; these things cost £120+ from Draytek, and I haven't had a bad
one yet!

I'm never quite convinced by this kind of thing - surely they must've
fallen off the back of a lorry, at that price?!
Nope, just secondhand. You need to be careful what make you get, avoid
Billion like the plague, but you can't go wrong with Vigor. I've
probably bought a dozen or more from eBay and nary a one has failed
yet. The best bargains are the 2600 range, wireless or wired. I've
recently bought 3, each of them for under £40, my clients are dead
chuffed with them. And I'm a Draytek trade reseller, so I can buy the
new ones with a decent discount but nothing like the bargains I get on
eBay.

--
Paul-B Formula 1 - cheat-free version here now.


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