[Cialug] [OT] Private LAN connected to building WLAN for InternetConnectivity

[Dave Weis]

I don't think a 54 meg wireless connection is going to be the bottleneck 
in a building sharing a 7 meg connection among multiple companies.

If it were me I would stick with what you have now.

dave



Claus wrote:
> Thanks John for the setup explanation.  I think I know how it set things 
> up now if we decide to go that way.
> 
> The scary part is that I did get confirmation that the wireless routers, 
> yes there are multiple, will be connected wireless to each other.  I 
> doubt we'll be lucky enough and have the modem near us.
> 
> I think things would work but the question is how good and if it's good 
> enough.  I can see our office having three computer users that want to 
> use the Internet and their traffic is going through one single 54Mbps 
> wireless pipe that hops through several routers.  Most of the time the 
> connection probably will be fine as we're the heavy computer/Internet 
> user in the building.  However I see days were the building is busy with 
> other internet users, or a major Windows service pack is out and people 
> download huge amount of data that we get the short end of the stick 
> since we squeeze all our users through that single wireless pipe.
> 
> Is that a valid concern and is that what I should be worried about or am 
> I missing something else significant?
> 
>   Claus
> 
> 
> On 3/25/2008 3:43 PM, John Roach wrote:
>> Keep your existing infrastructure in place, and then replace the wan
>> connection to your firewall from the DSL connection with a Linksys 
>> WET54G.
>> This is a low cost wireless Ethernet bridge.
>>
>> If you are using your current DSL modem for firewall and Nat, you will 
>> want
>> to also purchase a wap/firewall and use the bridge as the wan point.
>>
>> Feel free to drop me a line of list if you need part numbers etc...
>>
>> -----Original Message-----
>> From: cialug-bounces at cialug.org [mailto:cialug-bounces at cialug.org] On 
>> Behalf
>> Of Tom Pohl
>> Sent: Tuesday, March 25, 2008 2:26 PM
>> To: Central Iowa Linux Users Group
>> Subject: Re: [Cialug] [OT] Private LAN connected to building WLAN for
>> InternetConnectivity
>>
>> Since it's a building wide wireless network, I'd assume that there  
>> will be more than 1 access point covering the building.  Since that  
>> is probably the case, they will need to wire those access points  
>> (unless they go all wacky with WDS or something in which case I'd  
>> stick with your 1.5MB connection).  Could they possibly wire a line  
>> to your office's location so you're not on the wireless network?
>>
>> -Tom
>>
>> On Mar 25, 2008, at 2:17 PM, Claus wrote:
>>
>>> I'm the technical guru for a non-profit organization that is  
>>> considering to switch from its dedicated DSL to a building wide  
>>> shared network.  The idea is that we'd be saving about $30 a month.
>>>
>>> Currently we have a wired network and a wireless WPA network which  
>>> is used by 4 desktop computers, one laptop and a samba file server.  
>>> Internet connectivity is provides a 1.5 mbps Qwest line through an  
>>> Actiontech modem.
>>>
>>> Under the proposed model the Internet connectivity would be  provided 
>>> by a 7 mbps Quest line that's shared wireless throughout  the 
>>> building with all tenants and visitors.  The building's  wireless 
>>> network will be open to all.  The wireless routers are  rented from 
>>> Qwest and are supposed to be "industrial".  (BTW, I'm  not 
>>> responsible for the building wireless network.)
>>>
>>> I imagine that we still would need to keep our private LAN in order  
>>> to use the samba/windows shares without having to worry that  
>>> everybody can access our data.  Since we also have a laptop that  
>>> will need to access the samba shares we need our own protected WLAN  
>>> as we currently do.
>>> So I was thinking about setting one wireless router up as a bridge  
>>> to the buildings wireless internet, providing us internet access,  
>>> NAT, DHCP, and hopefully some control on what ports are open/cosed  
>>> (aka poor man firewall/packet filter).  Another wireless router or  
>>> access point would be set up for our WLAN.
>>>
>>> My questions:
>>> - Which router would be recommended to run as a wireless client and
>>>   provide Internet connectivity, NAT and DHCP for our local LAN?
>>> - What pitfalls might I encounter?
>>> - Is is a bad idea to rely on an open wireless network for Internet
>>>   access?
>>>
>>> Setting up Internet connectivity through a wireless network for a  
>>> wired LAN is something new to me.  So I'm very grateful for your  
>>> help and input.  Thanks,
>>>   Claus
>>> _______________________________________________
>>> Cialug mailing list
>>> Cialug at cialug.org
>>> http://cialug.org/mailman/listinfo/cialug
>>
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