Introduction To A Network Connection - Barco Njord Installation Manual

12.1.1 Introduction to a Network connection

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.
IP
Internet Protocol. The network layer of TCP/IP. Required for communication with the internet.
Subnet mask
A number that is used to identify a subnetwork so that IP addresses can be shared on a local area
network.
Default Gateway
A router that serves as an entry point into and exit point out of a network. For example, a local
network (LAN) may need a gateway to connect it to a wide area network (WAN) or to the Internet.
MAC address
Media Access Control address. Unique hardware number, used in combination with the IP-address
to connect to the network (LAN or WAN).
What should be set up for an Ethernet address?
Two ways can be used to assign an address:
• use the Automatic setting so that an automatic address will be assigned.
• Assign manually an IP address, Net-mask (subnet-mask), (default) gateway address.
- Set the IP-Address field to the desired value. This must NOT be 0.0.0.0 for static IP-Address
assignment. The IP address identifies a projector's location on the network in the same way a street
address identifies a house on a city block. Just as a street address must identify a unique residence, an
IP address must be globally unique and have a uniform format.
- Set the Subnet-Mask as appropriate for the local subnet.
- Set the Default-Gateway to the IP-Address of the local router (MUST be on the local subnet!) on the
same network as this projector that is used to forward traffic to destinations beyond the local network.
This must not be 0.0.0.0. If there is no router on the projector's local subnet then just set this field to any
IP-Address on the subnet.
GUI – System Settings
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