Exetel VPN Technical Details

Overview

The following notes on Exetel's own use of a multi office/multi state/multi country VPN should be read in terms of the attached diagram: click here

A Virtual Private Network is used to securely connect remote or branch offices to a central or head office.
Exetel use high reliability, commercial grade Cisco equipment to connect each site.
Each sites local network has direct access to the head office network via a secure Tunnel established by Exetel between the remote site and the head office.
Exetel can work with your existing LAN IP address scheme, or can supply you with private or public IP address blocks for each site.

Where Internet access is requested for a site, Exetel will supply one public IP address.
Where no Internet access is requested for a site, Exetel will supply a Private IP address block for the site, or work with the IP address range already in use.
Exetel can also provide additional blocks of public IP addresses for any site on request. Please discuss your requirements with the Exetel representative when they contact you.

Where Internet access is requested, 'Public IP Address' should also be selected and each workstation at the site will be able to access the Internet via NAT.
NAT will be disabled for sites that do not require Internet access.
A site may have 'Private IP Address' and also 'Internet' access selected. In this case, the site will be able to access the Internet via the Head Office site only. (this combination is useful if you wish Internet access to be controlled via a central firewall).