[AccessD] OT: Public and private network

Dear John,

I see that you do not have any response on this, yet.  I am by far NOT 
an expert in networking.  But, when I recently reconstructed my own 
wireless broadband network, I added a guest network.  It was quite 
simple to do, and it gave me the option of allowing or not allowing the 
guest network to access my local network.  I chose to not allow guest 
access.  My new routers are NetGear WNDR3400's and their software guided 
me through the process.

I hope this helps.  I have received so much help from you over the 
years, it will delight me to be able to give back a little.

T

On 6/8/2011 9:09 AM, jwcolby wrote:
> A church that I do pro bono for has an internet connection which 
> currently is sent through a wireless router and shared in a simple 
> workgroup lan.  They want to add a new lan segment which is "public", 
> i.e. can be used by classes they give, to get to the internet, but 
> they do not want those people to see or have access to the existing 
> LAN / computers.
>
> Am I correct that I can simply take two routers:
>
> RouterA attached to the cable modem.
> RouterA is the DHCP Server.
> RouterA is the "Public" network and its wireless interface serves that 
> part of the church.
>
> RouterB connects its WAN to one of the LAN ports.
> RouterB DHCP Server is turned off
> RouterB is the private network and it's wireless interface serves that 
> part of the church.
>
> The cable modem location is several hundred feet from the church where 
> the public network will be located.  I will use a Cantenna to beam the 
> wireless down to the church.
>
> http://www.cantenna.com/
>
> I am considering using a bridge to pick up the signal from the 
> Cantenna and retransmit the signal on another wifi channel.
>
> My parts list
>
> 1 existing router (wrt54g IIRC)
> 2 new router (probably a wrt54g as well)
> 1 (or possibly 2) Cantenna
>
> I am going to spend some time working with the system to see if I need 
> a bridge at the far end or whether the cantenna will allow systems at 
> the far end to see the internet directly through the cantenna.  I have 
> no idea what the beam diameter will be a few hundred yards away, but I 
> suspect that a wireless bridge and another wireless router at the far 
> end will be required.
>
> If anyone has done this kind of system and has words of wisdom please 
> speak up.  I will be setting this up soon.
>
>