DHCP, or Dynamic Host Configuration Protocol, is a language computers use to ask for an IP address when first connecting to a network. It is used to assign IP addresses and network information so the new computer can connect to various other servers running on the network. A residential router or gateway automatically performs these functions. It is importand that each network only include one DHCP server, or conflicts could occur. Depending on circumstances and the way the server was setup, it may accept or deny the request. The latter case being the computer will not be able to communicate on the network.
For a Windows based system you use the DHCP MMC snapin console. This is installed when the DHCP server service is installed. For Linux and Unix based systems you can edit the DHCP configuration file in /etc
Dhcp relay agent
The use of a DHCP relay agent is an agent that relays DHCP between DHCP clients and DHCP servers on different IP networks. The DHCP relay agent is compliant with RFC 1542.
Server is a system that is used for providing services to clients. for example print server provides print service, dhcp service provides dhcp service
Either disable the dhcp scope, or remove the service.
hope this would help: http://www.tech-faq.com/dhcp-relay-agent.shtml
It is useful only in small environments. When you have only one DNS in organization and users mainly use internet (external DNS names) then you can configure in DHCP that users will obtain also external DNS server address as secon one. It will be used only when first DNS service won't be accessible. P.S.
DHCP
Windows Server Family, Linux are some examples. And also there are some routers that have the DHCP service enabled.
because when the service is stopped the database is free and any chnages can be done and in restoring the database file is overwritten by system.when service is started again the DHCP database file is loaded again and one gets the retored database entries reflecting.
See related link. You can use MyLanViewer and detect DHCP servers.
DHCP uses the clients MAC address to determine the IP address a client receives.