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Ethernet Communication Module DVPEN01-SL

5.10 Static ARP Table

ARP (Address Resolution Protocol) is used for obtaining the MAC address corresponding to the IP address in data

transmission. For example, there is a datum to be sent to 172.16.155.250, but you do not know the corresponding

MAC address. You can use ARP to look up the MAC address by IP address, and the corresponding MAC address will

be saved, so you do not need to look it up again when sending the next datum. Therefore, if you do not know the MAC

address, you will have to spend some time looking up the MAC address. If you want to enhance the transmission

efficiency, use static ARP table to save time. For example, assume the IP address is 192.168.0.1 and MAC is

00:14:22:56:0F:7F. As long as there are data sent to 192.168.0.1, you will get the MAC address from the table.

 Setting a static ARP table

1. IP Address

Destination IP address in data transmission.

2. MAC Address

The MAC addresses corresponding to the IP address.

Note:

Incorrect settings may result in connection failure. Therefore, DO NOT set the MAC address of the equipment

without the network into the table.

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Delta Electronics RTU-EN01 Bedienungsanleitung Seite 34