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VPN over 128K DSL 2 offices - no remote - TOO SLOW

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nallen

IS-IT--Management
Oct 20, 2003
10
US
I have setup two office locations to communication over as 128K DSL line. Here's the senario:

I was 'told' that the setup for the offices was to 'VPN over the DSL' between the two offices. We have DSL modems at each site. Each modem is connected to a DSL/VPN-capable router (Netopia 3386). Each router is connected to the pcs at the respective offices (via switches/hubs).

The router at the Office A is set to look for the ip of the router at Office B. DNS and WINS is setup on our NT 4.0 PDC server located at Office B. All client pcs are running Windows 98.

Office A pcs are configured for DHCP (which the router at that location provides) and they are set for DNS and WINs to point to our PDC IP. The Gateway for the pcs here points to the router ip. The gateway for the pcs at Office B points to the ip of their router at that location.

We have a PDC server, Secondary Domain Controller server, Backup Domain Controller server and another 'general' server for some application software all at Office B running NT 4.0.


HOPE THAT MADE SENSE. Now, with that said,...

1) I can log onto our network from Office A. But, I'm just wondering, because we aren't using any 'VPN software' on the client pcs and I didn't setup the servers for anything VPN, are we really using VPN between the two sites? Does something need to be configured on the servers or is it the routers that are providing the VPN?

2) If WINS and/or DNS are not PROPERLY configured on the PDC, can the network connections function ok, but could this be the cause of the HORRIBLE speed problems we're having?? Or is this really just because it's a 128K DSL?

I'd appreciate any comments on how the serverS should be properly setup.

Thanks,
Nicole

P.S. These offices will be switching to T-1 lines in the near future. Should that eliminate the horrible lag time that Office A is experiencing using applications over the network?
 
I have recently completed a project of similar configuration...
Branch office connected to Main office.
Branch office had a Netopia router that negotiated VPN with another Netopia router at the Main office.

My configuration on 3Mbps was extremely slow - more than 50% of packets dropped most of the time - and it turns out that Netopia router at branch office was at fault.

Replaced Netopia w/ a DSL modem (for testing) and problem fixed. I then, sent router in for replacement.

Cheers
 
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