Packet sniffing is listening (with software) to the raw network device for interesting packets. When the software sees a packet that fits certain criteria, it logs it to a file. The most common criterion for an interesting packet is one that contains words like “login” or “password.” To packet sniff, obtain or code a packet …
A routing protocol is the implementation of a routing algorithm in software or hardware. A routing protocol uses metrics to determine which path to utilize to transmit a packet across an internetwork. The metrics that routing protocols use include: Number of network layer devices along the path (hop count) Bandwidth Delay Load MTU Cost Routing …
192.168.2.1 is a private IP address commonly used by the SMC and Belkin router manufacturers for device setup and troubleshooting. SMC and Belkin specialize in manufacturing home networking equipment that competes with Netgear, D-Link, and Linksys brands in the marketplace. The Internet Assigned Numbers Authority (IANA) does not grant exclusive use of the IP address …
Broadband over Power Lines, or BPL, refers to the transmission (sending and receiving) of digital data through existing power cables and electricity distribution infrastructures. This can be viewed as a mere variation on using television cables; instead of using television cables, though, power transmission lines are going to be used. The Broadband over Power Lines …
QoS stands for Quality of Service. QoS is a generic name for a set of algorithms which attempt to provide different levels of quality to different types of network traffic. Queuing One method of implementing QoS is to utilize some sort of advanced queuing algorithm. Simple networks process traffic with a FIFO (First In – …
Multimedia Messaging Service (MMS) is an upgraded version of the SMS (Short Messaging Service) through which users can send and receive multimedia messages such as texts, pictures, video clips, audio clips, etc. with any compatible cell phone. It is an advanced messaging service that lets users send multiple media in one single message to one …
Ethernet is the most popular Local Area Network architecture that was jointly developed by Digital Equipment Corporation, Intel Corporation and Xerox Corporation. It consists of certain specifications and standards as well as hardware devices and components. Ethernet provides services corresponding to physical layer and data link layer of the OSI reference model. Each Ethernet physical …
Every packet based network has an MTU (Maximum Transmission Unit) size. The MTU is the size of the largest packet that that network can transmit. Packets larger than the allowable MTU must be divided into smaller packets or fragments to enable them to traverse the network. Network Standard MTU Ethernet 1500 Token Ring 4096 Packet …
An RPC (Remote Procedure Call) is a technique used in computer science that allows an application to contact a separate application or service within the same hard drive or on a remote location. While the application initiating the call is known as the “client,” the application or location that is being called is referred to …
DNS (Domain Name Server) is the web server used to resolve a website’s name to its Internet Protocol (IP) address. DNS servers across the Internet are either considered authoritative with regards to a website name and corresponding IP address or are required to verify the IP address with another DNS server that will in turn …