Configure Network Services - MCSA Windows Server 2012 R2: Installation and Configuration Study Guide - page 114

If you need to enable Bind Secondaries, complete the following steps:

1.

Open DNS management.

2.

Right-click the server name and choose Properties.

3.

Click the Advanced tab.

4.

Check the Enable BIND Secondaries box.

5.

Click OK.

Overview of DHCP

As you will see in Chapter 7, TCP/IP is the priority protocol for Windows Server 2012 R2.
There are two ways to have clients and servers get TCP/IP addresses:
■ You can manually assign the addresses.
■ The addresses can be assigned automatically.
Manually assigning addresses is a fairly simple process. An administrator goes to each of
the machines on the network and assigns TCP/IP addresses. The problem with this method
arises when the network becomes midsized or larger. Think of an administrator trying to
individually assign 4,000 TCP/IP addresses, subnet masks, default gateways, and all other
configuration options needed to run the network.
DHCP's job is to centralize the process of IP address and option assignment. You can
configure a DHCP server with a range of addresses (called a pool ) and other configuration
information and let it assign all of the IP parameters—addresses, default gateways, DNS
server addresses, and so on.

DHCP is defined by a series of request for comments documents, notably
2131 and 2132.

Introducing the DORA Process

An easy way to remember how DHCP works is to learn the acronym DORA. DORA
stands for Discover, Offer, Request, and Acknowledge. In brief, here is DHCP's DORA
process:

1.

Discover : When IP networking starts up on a DHCP-enabled client, a special message
called a DHCPDISCOVER is broadcast within the local physical subnet.

2.

Offer : Any DHCP server that hears the request checks its internal database and replies
with a message called a DHCPOFFER, which contains an available IP address.