| Gateway IP | |
|
Node
Help Overview |
Use the Gateway IP Address
field to enter the static IP address of your LAN's gateway router if
you want to be able to address your Nodes from anywhere over the
Internet. This address is normally provided by your organization's IT department. Leave the entry at 0.0.0.0 if you do not want address your Nodes from anywhere over the Internet. Press GO to enter any change. A gateway router is a device which provides the entrance to a local area network (LAN). This is normally a router which assigns dynamic IP addresses and also serves as a firewall. A gateway can interface a first LAN to another LAN or to the Internet. The gateway IP address is the static IP address of the gateway router. If a Node with a dynamic IP address is to be addressed over the Internet, the static IP address of the gateway router or DHCP server which assigns the dynamic IP addresses must be known. The router can then address the Nodes on its LAN via the IP addresses that it has assigned dynamically. Background: Each Node has an IP address. This is a 4-byte number (e.g., 192.168.0.57) which is used to address Ethernet nodes on a local area network (LAN) or on the Internet (WAN). An IP address can be static and public so that it can be addressed on a WAN and have an associated domain name. It can also be a dynamic address assigned by a router or other DHCP server on a LAN. Such an address is also called a private or local IP address. Our Node-resident firmware automatically discovers the IP address of all Nodes on a LAN or WAN, plus any devices connected to each Server Node via an RS485 bus. |