U3 Assignment 1 IT2250 - U3A1 PDF

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UNIT 3 ASSIGNMENT 1 TCP/IP PROTOCOLS AND IP ADDRESSING 1

UNIT 3 ASSIGNMENT 1 John Mekita IT2250 INTRODUCTION TO NETWORK TECHNOLOGY Alidad Jalinous Capella University December 1, 2019

UNIT 3 ASSIGNMENT 1 TCP/IP PROTOCOLS AND IP ADDRESSING 2 Table of Contents

The Role of TCP/IP, and UDP protocols------------------------------------------------------------------3 Concepts of IP addressing and subnet masks--------------------------------------------------------------3 Specify the network and subnet ID’s and the IP addresses used for different devices on the hospital’s network------------------------------------------------------------------------------------------3-4 Differences between assigning static vs. dynamic IP addresses to the network nodes--------------4 Differences between private and public IP addresses--------------------------------------------------4-5 Role of the DHCP and DNS sever on the enterprise networks------------------------------------------5 Resources-------------------------------------------------------------------------------------------------------6

UNIT 3 ASSIGNMENT 1 TCP/IP PROTOCOLS AND IP ADDRESSING 3

TCP (Transmission Control Protocol) is used for organizing data in a way that ensures the secure transmission between the server and client. It guarantees the integrity of data sent over the enterprise network, regardless of the amount. For this reason, it is used to transmit data from other higher-level protocols that require all transmitted data to arrive. The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying datagrams across enterprise network boundaries. Its routing function enables internetworking, and essentially establishes the Internet. UDP (User Datagram Protocol) is an alternative communications protocol to Transmission Control Protocol (TCP) used primarily for establishing low-latency and loss-tolerating connections between applications on the internet. An IP address is an address used in order to uniquely identify a device on a network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The binary bits are broken into four octets. Each octet is converted to decimal and is separated by a period (dot). For this reason, an IP address is said to be expressed in dotted decimal format. The value in each octet rangers from 0 to 255 decimal, or 00000000 – 11111111 binary. A subnet mask is a number that defines a range of IP addresses available within a network. A single subnet mask limits the number of valid IP’s for a specific network. Multiple subnet masks an organize a single network into a smaller networks called subnetworks or subnets.

UNIT 3 ASSIGNMENT 1 TCP/IP PROTOCOLS AND IP ADDRESSING 4 In the hospital setting, I would suggest setting subnet IDs to correspond with the different sections of the hospital. I would also include in those subnets categories such as “records” and stuff for patients and staff as well. By setting different subnets for the different sections of the hospital, it will ensure that information is organized and that, if necessary, data can quickly and easily be traced back to the department and IP address it originated from. We will use private IP addressing beginning with 10.20.x.x. IPv4 will be the addressing used for this implementation. The first three octets of the address will represent the network while the fourth octet will designate the host. Each floor will be designated using the 3rd octet corresponding to the floor number. 0 for the basement, 1 for the 1st floor and so on. For example, the first floor will have an address scheme of 10.20.10.0, while the second floor will have an address scheme of 10.20.20.0. Each subnet will be configured at the Ethernet switch using virtual LANs (VLANs). IP addresses will be managed automatically using DCHP. Segmenting the network into subnetworks provide enhanced security, improved performance and makes troubleshooting simpler. Subnets can prevent disruption caused broadcast transmissions from network work devices and malware by limiting the network.

Dynamic IP address is an IP address that is an IP address that is assigned to your computer by your ISP; the IP address can be changed. Each time the computer boots up your ISP dynamically assigns an IP address to your network using DHCP protocol. Static IP address it is manually configured for a device it was assigned via DHCP server. This IP address does not change it is the opposite of the dynamic. Routers, phones, tablets, desktops, laptops and any other device can use an IP address this IP address won’t change. A dynamic IP address is more recommended for

UNIT 3 ASSIGNMENT 1 TCP/IP PROTOCOLS AND IP ADDRESSING 5 companies and business because the IP address is more difficult to trace it is provided by your ISP. Static IP it is manually configured it is more recommended for homes.

A public IP address can be accessed over the internet like a postal address, a private one is used to assign computers within your private space computers in your home may use private IP address. Either one private or public you will always have an IP address that will allow your network to identify and located an IP address. This will allow you to identify our computers or gadgets to be connected through our own private network.

DHCP server allocates a temporary address to the client’s computer for a lease of time and then extends the lease according to the requirements. DNS servers accept the queries through client and responds back with the results. DHCP and DNS are created to make it easy for us to use networks or the internet. DHCP assigns the IP address and the DNS looks up the already existing address. This ensures our computer can find the correct site through an IP address rather than a domain name.

UNIT 3 ASSIGNMENT 1 TCP/IP PROTOCOLS AND IP ADDRESSING 6

Resources; West, J. (2016). Network+ Guide to Networks, 7th Edition. IP Addressing and Subnetting for New Users Found here; https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/137883.html...