| Discovery Port | |
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Node
Help Overview |
Use the UDP Port field to
enter a second UDP port number if required. Leave the UDP number at
63179
if you do not require a second UDP port number. Press GO to enter
any change. The TCP and UDP protocols specify a source and destination port number in their packet headers. A port number is a software construct associated with permissions for an application such as our Node discovery. Our Node discovery software uses TCP port 502 and UDP port 63179. If port 63179 is blocked by a router, this field can be used to enter a second UDP port number, which will then be used for Node discovery in addition to 63179. 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. |