Organization Within Active Directory

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May include but is not limited to: configuring IP options, subnetting, supernetting, alternative configuration

May include but is not limited to: IPsec policy, IPsec Authentication Header (AH), IPsec Encapsulating Security Payload (ESP)

In this chapter, we will discuss the most important protocol used in a Microsoft Windows Server 2008 network: Transmission Control Protocol/Internet Protocol (TCP/IP).

As mentioned in the previous chapter, TCP/IP is actually two sets of protocols bundled together: the Transmission Control Protocol (TCP) and the Internet Protocol (IP). TCP/IP is a suite of protocols developed by the Department of ccnp exam
Defense’s Advanced Research Projects Agency in 1969.

This chapter is divided into two main topics; we’ll talk about TCP/IP version 4 first and then about TCP/IP version 6. TCP/IP version 4 is still used in Windows Server 2008, and it was the primary version of TCP/IP in all previous versions of Windows. However, TCP/IP version 6 is the new release of TCP/IP, and it has been incorporated into Windows Server 2008 as ...
... well.

Understanding TCP/IP

We mentioned earlier that TCP/IP is actually two sets of protocols bundled together: TCP and IP. These protocols sit on a four-layer TCP/IP model (see Figure 2.1).

Details of the TCP/IP Model

The four layers of the TCP/IP model are as follows:

Application layer
The Application layer is where the applications that use the protocol stack reside. These applications include File Transfer Protocol (FTP), Trivial File Transfer Protocol (TFTP), Simple Mail Transfer Protocol (SMTP), and Hypertext Transfer Protocol (HTTP).

Transport layer
The Transport Layer is where the two Transport layer protocols reside.

These are TCP and the User Datagram Protocol (UDP). TCP is a connection-oriented protocol, and delivery is a practice exams
guaranteed. UDP is a connectionless protocol. This means UDP does its best job to deliver the message, but there is no guarantee.

Internet layer
The Internet layer is where IP resides. IP is a connectionless protocol that relies on the upper layer (Transport layer) for guaranteeing delivery. Address Resolution Protocol (ARP) also resides on this layer. ARP turns an IP address into a Media Access Control (MAC) address. All upper and lower layers travel through the IP protocol.

Link layer The data link protocols like Ethernet and Token Ring reside in the Link layer. This layer is also referred to as the Network Access Layer.