Network Requirements

Select Certification Bootcamp :
MCSE MCSE+Security CCNA CCNP RHCE Register Course Fees Home

Schedule FAQ Why Vibrant Location

Leading MCSE, CCNA, CCNP Certification boot camp training provider in India, USA, UK.

Network Requirements

The following requirements must be met to implement Microsoft TCP/IP using DHCP:

The DHCP server service must be running on a Windows NT server.
The DHCP server must have a manually configured IP address.
A DHCP server must be located on the same subnet as the DHCP clients, or the clients subnet must have a DHCP relay agent running, or the routers connecting the two subnets involved must be able to forward DHCP (BOOTP) datagrams.
Pools of IP addresses known as scopes must be configured on the DHCP server.

It is easiest to implement DHCP with only one DHCP server on a subnet (local network segment). If more than one DHCP server is configured to provide addresses for a subnet then either could provide the address—there is no way to specify with server to use such as you can in WINS (Windows Internet Name Service). Because DHCP servers do not communicate with each other, a DHCP server has no way of knowing if an IP address is leased to a client from another DHCP server.

To prevent two DHCP servers from assigning the same IP address to two clients, you must ensure that each IP address is made available in a scope on only one DHCP server on the internetwork. In other words, the IP address scopes cannot overlap or contain the same IP addresses.

If no DHCP server is available to lease an IP address to a DHCP client—due to hardware problems, for example—the client cannot initialize. For this reason, you may want to have a second DHCP server, with unique IP address scopes, on the network. This scenario works best when the second DHCP server is on a different subnet connected by a router that forwards DHCP datagrams.

A DHCP client accepts the first IP address offer it receives from a DHCP server. This address would normally be from the DHCP server on the local network because the IP address request broadcast would reach the local DHCP server first. However, if the local DHCP server is not responding, and if the DHCP broadcasts were forwarded by the router, the DHCP client could accept a lease offer from a DHCP server on a remote network.

Finally, the DHCP server must have one or more scopes created by using the DHCP Server Manager application (Start, Programs, Administrative Tools, DHCP Manager). A scope is a range of IP addresses available for lease by DHCP clients; for example, 200.20.5.1 through 200.20.5.20 may be a scope for a given subnet, and 200.20.6.1 through 200.20.6.50 may be a scope for another subnet.

Vibrant Advantage :

No Prestudy
Longest Duration Camp
Chalk Talk Training
Highest Passing Rate
Bootcamp since 1999
Guaranteed Certification ...

Testimonials :

MCSE Certification boot camp

The instructor taught real world experience and did not just teach us to pass the test. He knew the subject well and was encouraging. His lectures were very well delivered....

Colver Dennis, USA