What is DHCPINFORM?
DHCPInform is a DHCP message used by DHCP clients to obtain DHCP
options. While PPP remote access clients do not use DHCP to obtain
IP addresses for the remote access connection, Windows 2000 and
Windows 98 remote access clients use the DHCPInform message to
obtain DNS server IP addresses, WINS server IP addresses, and a DNS
domain name. The DHCPInform message is sent after the IPCP
negotiation is concluded. The DHCPInform message received by the
remote access server is then forwarded to a DHCP server. The remote
access server forwards DHCPInform messages only if it has been
configured with the DHCP Relay Agent..