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Olaf De CeusterFlag for Australia

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In need of Expert advise

Hi Experts, Any suggestions on this will be highly appreciated, even if extreme or strange.
I've got an SBS 2003 SP1 network with 2 secondary 2003 application servers at head office of one of my clients.
They use a netbox router and a 2Mb/2Mb Business grade SDSL connection. The Router allows for only one PPTP connection at the time. It only allows for VPN Tunnels using a Netbox Branch office (so Netbox says) at Au $2000 each.
I've got three other sites each with 3 x POS (Point of sales systems) and a bunch of wireless printers and one workstation Each.
The POS are XPSP2. These sites have a D-Link DIR635 and DSL modem. Those routers are NOT VPN routers.
Initially the POS supplier said that every site needed a VPN back to head office but it turns out that every POS needs a VPN (Or VPN Tunnel with is not possible from those routers)
I was just going to use the SBS VPN from the 3 sites but now I am dealing with 9 x VPN + all the usual remote users (Headoffice has 35 all of them remote at some stage)
Question is: Can SBS handle this and does anyone have any ideas as to a more efficient way. Should I advise them to purchase VPN Routers?
According to POS people the POS stations need a real time constant connection to the server.
Any suggestions, advice, ideas appreciated!
Thanks,
Olaf
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Hi guys,

I tried the SBS VPN's and it worked for a while. Reliability got me in the end. The automatic reconnection would sometimes time out. I had it said to 10 x retrials but that was still not enough.
So I installed Netbox devices: www.netbox.com.au with a NB30 at headoffice and 3 x SOHO5 as branch offices. The advantage is that the three SOHO boxes also tunnel to themselves (automayically) so even is the server is down the system keeps going.
Hasn't failed so far.
Thanks for your interst and advice.
Olaf