A method, system, and program for modifying a DHCP configuration for one system according to a request from another system are provided. A first system specifies a modify packet to request modification of a stored configuration for a dynamically configured system. The first system then sends the modify packet to a DHCP server that manages the stored configuration for the dynamically configured system. Responsive to the DHCP server authenticating the first system as privileged to make the modification request, the DHCP server modifies the stored configuration according to the modify packet, such that one system can request modification of the DHCP configuration for another system without logging into the DHCP server.