[MLB-WIRELESS] Melbwireless Digest, Vol 40, Issue 5

Tue Jan 27 11:18:51 EST 2009

can you please stop sending me messagers

> From: melbwireless-request at wireless.org.au
> Subject: Melbwireless Digest, Vol 40, Issue 5
> To: melbwireless at wireless.org.au
> Date: Wed, 14 Jan 2009 12:00:01 +1100
> 
> Send Melbwireless mailing list submissions to
> 	melbwireless at wireless.org.au
> 
> To subscribe or unsubscribe via the World Wide Web, visit
> 	http://wireless.org.au/mailman/listinfo/melbwireless
> or, via email, send a message with subject or body 'help' to
> 	melbwireless-request at wireless.org.au
> 
> You can reach the person managing the list at
> 	melbwireless-owner at wireless.org.au
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Melbwireless digest..."
> 
> 
> Today's Topics:
> 
>    1. Wireless Links (Shaun Gunston)
>    2. Re: Wireless Links (mw at freenet.net.au)
>    3. Re: Wireless Links (Jason Hecker)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 14 Jan 2009 00:41:16 +1100
> From: "Shaun Gunston" <shaung at internode.on.net>
> Subject: [MLB-WIRELESS] Wireless Links
> To: <Melbwireless at wireless.org.au>
> Message-ID: <000001c97584$9e00b870$da022950$@on.net>
> Content-Type: text/plain; charset="us-ascii"
> 
> Just after some assistance.
> 
> I'm a network admin for a school, and have 3 rooms that aren't networked.
> 
> Fibre is going to cost a bit, and these rooms won't be used for much, so I
> thought a wireless link may do the job.
> 
> Pretty much the 3 rooms are next to each other, and have 3 building
> surrounding them, which have network connectivity.
> 
> I would like some redundancy if possible, and as much bandwidth as possible.
> 
> Was thinking an UltraWAP with appropriate antenna on each building, pointing
> to the closest networked one.
> 
> But this only provides 54Mbps, and one single link, no redundancy.
> 
> If anyone has any idea's it would be great.
> 
>  
> 
> -Shaun
> 
>  
> 
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://wireless.org.au/pipermail/melbwireless/attachments/20090114/a7da1f36/attachment-0001.html 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 14 Jan 2009 10:25:27 +1100
> From: <mw at freenet.net.au>
> Subject: Re: [MLB-WIRELESS] Wireless Links
> To: "'Shaun Gunston'" <shaung at internode.on.net>
> Cc: 'Melbourne Wireless' <melbwireless at melbournewireless.org.au>
> Message-ID: <060901c975d6$3812d820$a8388860$@net.au>
> Content-Type: text/plain; charset="us-ascii"
> 
> Hi Shaun,
> 
>  
> 
> Any response depends a lot on what you want to do with those three rooms.
> like do you have desktop PCs in there that you want to have access to a LAN
> in the main building/s?  Do you want handheld/laptop devices to be able to
> roam through those three buildings?
> 
> And how /many/ devices to you want to get access in there?
> 
>  
> 
> If they are just desktops, then personally I would cable them all up to a
> switch, and then put a wireless point to point link between the switch and
> the main LAN.  That way, you minimize the number of wireless devices that
> will be competing for airtime, and make your wireless link more efficient.
> 
>  
> 
> For a high performance solution with highly flexible and extensive feature
> set, I always like to recommend Mikrotik Product:  Http://shop.duxtel.com.au
> 
>  
> 
> <declaration>we are an Australian distributor of Mikrotik
> equipment</declaration>
> 
>  
> 
> I'm not sure why you mention "no redundancy".  what sort of redundancy to
> you need?  You don't have redundancy with a cable either, but most people
> don't worry too much about that! ;-)  In any case, many advanced router
> systems (Mikrotik included) can support RRP (router redundancy protocol) to
> give you automated fail-over in case of one device failing - though I would
> say that this is overkill for what you want.
> 
>  
> 
> As for 54Mbits, you generally won't get that sort of speed in actual traffic
> throughput anyway - more like about 30M for a good close proximity link -
> but with equipment supporting dual channel 802.11a (Mikrotik included), you
> can get up to 108Mbits air rate.
> 
>  
> 
> Furthermore, Mikrotik proprietry routerOS supports dual wireless interface
> extensions so that you can run two point to point links in dedicated
> transmit/receive and so you can implement a full duplex link with
> simultaneous 108Mbit send/receive capability.
> 
>  
> 
> But of all you want is just wireless AP coverage for roaming handheld and
> laptop support, then any old desktop AP will probably do the job, including
> UltraWAP.  Again, though, my recommendation would be suitable Mikrotik in an
> outdoor case mounted somewhere central to give you improved signal coverage
> range.
> 
>  
> 
> Cheers!
> 
> Mike.
> 
>  
> 
> I'm a network admin for a school, and have 3 rooms that aren't networked.
> 
> Fibre is going to cost a bit, and these rooms won't be used for much, so I
> thought a wireless link may do the job.
> 
> Pretty much the 3 rooms are next to each other, and have 3 building
> surrounding them, which have network connectivity.
> 
> I would like some redundancy if possible, and as much bandwidth as possible.
> 
> Was thinking an UltraWAP with appropriate antenna on each building, pointing
> to the closest networked one.
> 
> But this only provides 54Mbps, and one single link, no redundancy.
> 
> If anyone has any idea's it would be great.
> 
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://wireless.org.au/pipermail/melbwireless/attachments/20090114/c63d104c/attachment-0001.html 
> 
> ------------------------------
> 
> Message: 3
> Date: Wed, 14 Jan 2009 10:41:36 +1100 (EST)
> From: Jason Hecker <jhecker at wireless.org.au>
> Subject: Re: [MLB-WIRELESS] Wireless Links
> To: "Shaun Gunston" <shaung at internode.on.net>
> Cc: melbwireless at wireless.org.au
> Message-ID: <4231.203.87.12.85.1231890096.squirrel at wireless.org.au>
> Content-Type: text/plain;charset=iso-8859-1
> 
> > Pretty much the 3 rooms are next to each other, and have 3 building
> > surrounding them, which have network connectivity.
> 
> A cheapie and quick way would be to get six bog standard 802.11G WAPs.  I
> recently bought an excellent Minitar WAP (with WPA2) for $35 - it's very
> reliable, but if you feel nervous about these then buy something a bit
> more pricey.
> 
> Along with the APs get some suitable runs of coax and external antennas
> (for the distances you are talking a directional may be overkill).
> 
> At the main building set each access point up on channels 1, 6 and 11/12
> respectively and each with it's own unique SSID in access point mode and
> using WPA2 security and plug them into the main LAN.
> 
> At each building have a complementary WAP set up plugged into a local
> switch with each access point set to client mode.  They should then
> connect to their respective access points and each building will have its
> own dedicated WLAN link back to the main network.  It'll be like you ran
> some Cat5 back to the main site (though at ~30Mbit effectively).
> 
> Variations on this, depending on the WAP capabilities might be, apart from
> AP<->APClient, are AdHoc<->AdHoc or Bridge<->Bridge.
> 
> Don't forget to disable any DHCP service in the APs.
> 
> All this for the price of a substitute teacher for a day.
> 
> 
> ------------------------------
> 
> _______________________________________________
> Melbwireless mailing list
> Melbwireless at wireless.org.au
> http://wireless.org.au/mailman/listinfo/melbwireless
> 
> 
> End of Melbwireless Digest, Vol 40, Issue 5
> *******************************************

_________________________________________________________________
Get rid of those unwanted christmas presents! Get what you want at ebay.
http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Frover%2Eebay%2Ecom%2Frover%2F1%2F705%2D10129%2D5668%2D323%2F4%3Fid%3D10&_t=763807330&_r=hotmailTAGLINES&_m=EXT
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.wireless.org.au/pipermail/melbwireless/attachments/20090127/ff7490f8/attachment.html>