Advantech EKI-7659CPI User Manual page 52

DHCP Server – System configuration
DHCP is the abbreviation of Dynamic Host Configuration Protocol that is a protocol for assigning
dynamic IP addresses to devices on a network. With dynamic addressing, a device can have a different
IP address every time it connects to the network. In some systems, the device's IP address can even
change while it is still connected. DHCP also supports a mix of static and dynamic IP addresses.
Dynamic addressing simplifies network administration because the software keeps track of IP addresses
rather than requiring an administrator to manage the task. This means that a new computer can be
added to a network without the hassle of manually assigning it a unique IP address.
The system provides the DHCP server function. Enable the DHCP server function, the switch system will
be a DHCP server.
DHCP Server: Enable or Disable the DHCP Server function. Enable – the switch will be the DHCP
server on your local network.
Low IP Address: the dynamic IP assign range. Low IP address is the beginning of the dynamic IP
assigns range. For example: dynamic IP assign range is from 192.168.1.100 ~ 192.168.1.200.
192.168.1.100 will be the Low IP address.
High IP Address: the dynamic IP assign range. High IP address is the end of the dynamic IP assigns
range. For example: dynamic IP assign range is from 192.168.1.100 ~ 192.168.1.200. 192.168.1.200
will be the High IP address.
Subnet Mask: the dynamic IP assign range subnet mask.
Gateway: the gateway in your network.
DNS: Domain Name Server IP Address in your network.
Lease Time (sec): It is the time period that system will reset the dynamic IP assignment to ensure the
dynamic IP will not been occupied for a long time or the server doesn't know that the dynamic IP is
idle.
And then, click Apply
EKI-7659CPI_Manual_ed33
Figure 3.9: IP Configuration
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