Configure an IP Address using DHCP and RARP

When the device server boots, it transmits a DHCP request and a RARP request. This continues until an address is assigned.

• DHCP Option 12: If the device is configured to use DHCP, the combined host and domain will be sent as a hint to the DHCP server when requesting an IP address. As a convention, some DHCP servers use this hint to assign the IP address associated with the host name.
• DHCP Option 81 FQDN (Fully Qualified Domain Name): If the device is configured to use DHCP, and the FQDN option is enabled in the advanced settings menu, the device will send the combined host and domain name as a request to the DHCP server to assign the IP address associated with the host name.

To use RARP or DHCP, follow these steps:

1. Set up an entry for an address on a DHCP or RARP server. If you intend to use RealPort, do the following:
   • Reserve a permanent IP address.
   • Record the IP address. You will need it when you configure the RealPort driver.
2. Power on the device server. The DHCP or RARP server assigns the device server an IP address.