Security considerations
The DHCP protocol is not capable of verifying that clients requesting IP addresses are authorized to do so.
Because of the nature of DHCP's interaction with the network, it is important that you secure your System i™ model from outside clients. If your DHCP server is on a System i model that is part of a trusted internal network, you might be able to use IP filtering and network address translation to further secure it from any unauthorized parties. If your DHCP server is on a System i model that is attached to an untrusted network, such as the Internet, refer to the System i and Internet security topic.
Parent topic:
Planning for DHCPRelated concepts
IP filtering and network address translation Security