Private LAN across WAN??

Are you looking for VPNs, perhaps? Or just enable cryptography in order to maintain the confidentiality of data among them.

Alex.

You are looking for a VPN (Virtual PRIVATE Network). It is not a public LAN, it remains private to anyone who has credentials. You can even get more detailed by forcing remote VPN users to be part of a domain which would still control access to domain resources.

A VLAN has nothing to do with what you are discussing. A VLAN segments your network locally and is layer 2 only (will not traverse a WAN). A VLAN is generally considered a separate subnet/network segment allowing multiple segments per switch. Without VLAN's, a separate switch would be required for each subnet.

If you create a VPN it would accomplish what you are wanting to do but also requires cryptographic IOS or a PIX to be in the scenario.

Ryan

snipped-for-privacy@rediffmail.com wrote:

Thanks for the information.

Now, (when VLAN cannot be used for it) I am curious to know about setting up a Public LAN with the 2-3 servers that are located across WAN. What are the options available to configure such a setup?