XVS - 2 - Log in - Barco

5. XVS - WAN support
5.2 Supported WAN setups for n computers
Overview
The following setups are possible:
• WAN with n fixed IP addresses.
• WAN with 1 fixed IP address (Operate) + n - 1 dynamic IP addresses (Playbacks).
• WAN with n dynamic IP addresses.
Considerations
• All setup should be deployed with VPN using a hardware firewall/router.
• When using dynamic IP addresses, a DNS + DHCP server must be used for dynamic hostname resolving.
When using a firewall/router, NAT (network address translation) must be setup.
Either your internet provider provides DNS support or the PIX firewall can be configured with a public
DNS server. The public DNS server might by slower.
• Options:
- Public DNS server = 4.2.2.1, 4.2.2.2
- Use dynamic DNS, register at dyndns.org
VPN
Virtual Private Network. A VPN is a way to use a public telecommunication infrastructure,
such as the Internet, to provide remote offices or individual users with secure access to their
organization’s network. A virtual private network can be contrasted with an expensive system
of owned or leased lines that can only be used by one organization. The goal of a VPN is to
provide the organization with the same capabilities, but at a much lower cost.
DNS server
Computers, Projectors connected to a network are referenced by their IP address. The only
problem is that remembering IP addresses is not easy. If you need to use hundreds of addresses
then it will become impossible to remember them. This is why domain names are created.
Internet names (domain and host names) are just aliases to these IP addresses. When
you use an Internet address it is automatically translated to an IP address. In fact a program
or device that translates those Internet names to IP addresses is called a DNS Server.
DHCP
Dynamic host configuration protocol. DHCP is a communications protocol that lets network
administrators manage centrally and automate the assignment of IP addresses in an organization’s
network. Using the Internet Protocol, each machine that can connect to the Internet
needs a unique IP address. When an organization sets up its computer users with a connection
to the Internet, an IP address must be assigned to each machine. Without DHCP, the IP address
must be entered manually at each computer and, if computers move to another location
in another part of the network, a new IP address must be entered. DHCP lets a network administrator
supervise and distribute IP addresses from a central point and automatically sends
a new IP address when a computer is plugged into a different place in the network.
5.3 About Internet providers
Cable/ADSL
Cable and ADSL require different modems.
58 R5976955 XVS - 2 14/03/2007