Intro to Networking ITT Chapter 5 Labs 1-3 Essay

When setting up a LAN the architecture that you decide to choose is important. There are several factors that are decided when choosing said architecture, some of these being network speeds, types of cables, and access control mechanisms like collision detection (Team, 2011). The most common on in today’s LANs is Ethernet. These can be either wireless, wired, or a hybrid of both.

The attacking VM uses the stored ARP cache to re-direct packets from the client VM, to an attack machine, and then forward to the host, thus the attacker machine can see all traffic between client and host. First the target MAC address is established, and then the ARP Poison protocol poisons the cache of the client by forcing a cache update with the path re-routed so that the attacker machine forwards traffic to and from host and client.

a. The CPU tells the RAM which address holds the data that the CPU wants to

Packets also known as frames are grouped amounts of data that are sent across a network. However, packets differ from frames in that a packet contains that data to be sent, including the source and destination Internet Protocol (IP) addresses. A frame is packet that contains the data, the source and destination IP addresses, Media Access Control (MAC) source and destination addresses, and error checking. The MAC addresses are added at the beginning of the data also known as a header. An error checking code is also added to the end of the data which is referred to as a trailer. After the packet has been “framed”, the frame is then sent over the networking medium (i.e. Ethernet cable).

if A sends frames with the MAC broadcast address, if the LAN broadcast address is used, the adapter of C will both process the frames and then pass the datagrams up to the protocol stack.

Switches connect devices that are connected to their ports. Data is sent from a device to a switch which then forwards the data to another device. Switches at the data-link layer of the OSI (Open Systems Interconnection) seven-layer model use the source and destination MAC address to forward data. The switch relies on the destination MAC address to send the data. The destination MAC addresses and port are stored by the switch in an ARP table. The switch creates the table. If a MAC address is unknown then the switch finds it by trying available ports then it adds the MAC address to its table.

As a result, a significant challenge for implementing 802.1X in many networks involves what to do about all the non-802.1X endpoints and how to handle network connectivity for those devices. There are options and workarounds, but each one involves compromise in terms of network security and/or management complexity.

My name is Nihar Shah. I am taking CST 208- Introduction to networking in this semester. I am going to write about my networking background in this paper. I am going to provide some information newly learned. Firstly, I would talk about what is a network. In information technology, a network is the interconnection of a set of devices capable of communication. In this definition, a device can be a host such as a large computer, desktop, laptop, workstation, cellular phone, or security system. A device in this definition can also be a connecting device such as a router, which connects the network to other networks, a switch, which connects devices together, a modem, which changes the form of data, and so on. Secondly, I would like to talk about some topologies like the bus, star, token ring, and mesh topologies. Thirdly, I would talk about hubs, switches, routers, and modems.

application which has a conflict-resolving algorithm that provides the "rules" or the protocol for transmitting and receiving information via the bus. All devices (nodes) on the network receive the multicast/ broadcast message on the network, but each node determine if the message is relevant to them based by an identifier. Data messages transmitted from any node on a CAN bus do not contain addresses of either the transmitting node i.e. where it came from or of any intended receiving node i.e. the target device. Instead, the content of the message is labelled by an identifier that is unique from identifiers of other messages in the entire network. All other nodes which are on the network, once they receive the message, perform an acceptance test on the identifier to determine if the message, and thus its content, belongs to that particular node. If the message turns out to belong to the node through confirmation, then it will be processed; else it is ignored. Before sending a message the CAN node checks if the bus

In the paper, the researcher learned about the poor integration system that was created by the consulted. In order to improve the system there were certain things that had to be enhanced such as the security within four main department of the campus, so it was necessary to find the best way to reduce the WAN, include a VLAN structure and reduce broadcast traffic.

Ethernet, which has for quite a while been used for neighborhood (LANs), is dynamically being used for metropolitan region systems (MANs). Since it is conspicuous, fundamental, and down to earth, it is getting the chance to be doubtlessly pervasive as a strategies for transporting data in a MAN. A basic for giving different levels of administration in a MAN is the ability to help and keep up benefit level assentions (SLAs). Proper organization of SLAs ensures that customers don't harm their understandings and makes it possible to guarantee nature of administration (QoS). Such organization requires support for development stream control, checking, and policing. This paper shows a novel Ethernet development policing segment in perspective of

ARP: - : stands for address resolution protocol and it helps to find the hardware address of a host from its recognised ip address. IT facilitates data exchange between computers on the same network. It is only used for one address request at a time. It operates as a interface between network and data link layer.

Upon attaching to the local address, the UE configures a new IP address. The UE uses this IP address as a source address to start new sessions. The traffic of these sessions is then routed dynamically without tunneling. If these sessions end before undergoing a handover, then there is no reason to keep the local address as the anchor. If the UE endures one or more handovers before ending its sessions, then the UE manages the mobility by sending a binding update (BU) to the local address, which acknowledges with a binding acknowledgement (BA). A tunnel becomes established between the UE and the local address for the data packets of its sessions. After the UE is attached to a new local address, it uses a new IP address to start new sessions.

The Institute for Electrical and Electronic Engineers (IEEE) has been involved in the development of wireless LAN standards for the last seven years. Finally IEEE has evolved with a version of standard to be used for wireless networks named as IEEE 802.11 in 1997.

In this paper, the topic of computer network speeds will be discussed. The overlaying question that will be addressed in this paper will be “How fast can computer networks operate at?” The various connection types of Ethernet, Fiber Optic, and wireless will be discussed as well as newer protocols, as well as more common 802.11 protocols used for wireless connectivity speeds. How the internet works and how every network is run will also be brought up throughout this paper.