NLB & Clustering over VPN

I need to setup NLB & SQL Clustering for a SharePoint farm deployment. I
was wondering if this is possible if the servers are connected to one
another via a VPN connection? If it is possible, are there any special
considerations that I must be aware of?

Thanks for ANY help.

If routing is in place then the technologies (NLB and Cluster) would have no dependencies on the topology (VPN or not). I am assuming that on the NLB you would have a public side (NLB connection) and a private side (backend) that would be used with traffic from the sharepoint to SQL traffic. On the cluster side, you would have a cluster network (actually protected network as with NLB but maybe across VPN) and of course the SQL Cluster HB NICs would be cross-over cable between the two cluster nodes.

So, traffic would come into the NLB adapter from the true public side. The application (sharepoint services) would then process traffic to SQL out the private interface of the NLB nodes to the cluster (although actually protected) interface of one of the Cluster nodes. As long as the private side NICs can communicate to the Cluster networks successfully, you should not have any problems.

Thank you very much for taking your time to respond.

"Bryan Ford (MSFT)" <(E-Mail Removed)> wrote in message
news:2A92CDF6-CA3A-4147-AF9E-(E-Mail Removed)...
> If routing is in place then the technologies (NLB and Cluster) would have
no dependencies on the topology (VPN or not). I am assuming that on the NLB
you would have a public side (NLB connection) and a private side (backend)
that would be used with traffic from the sharepoint to SQL traffic. On the
cluster side, you would have a cluster network (actually protected network
as with NLB but maybe across VPN) and of course the SQL Cluster HB NICs
would be cross-over cable between the two cluster nodes.
>
> So, traffic would come into the NLB adapter from the true public side.
The application (sharepoint services) would then process traffic to SQL out
the private interface of the NLB nodes to the cluster (although actually
protected) interface of one of the Cluster nodes. As long as the private
side NICs can communicate to the Cluster networks successfully, you should
not have any problems.
>
>