What is difference between static ip and dynamic ip

Network nodes usually have the following three identities: • hostname • Internet Protocol (IP) address • media access control (MAC) address Hostnames are assigned by administrators and are descriptive names helpful to human users, such as webserver3.mydomain.internal. MAC addresses are hardcoded on the network interface card (NIC) and are unique to it. Each network node needs an IP address. These addresses are assigned and configured in two primary ways: static assignment and dynamic assignment. This article discusses both static and dynamic addressing, what these concepts mean and when to use each one. Rules to keep in mind At a minimum, IP address settings consist of the actual IP address and a subnet mask. It is likely, however, that sys admins will also configure the IP address of a default gateway (router) and name resolution servers. These configurations can't contain mistakes or typos, and no duplicate IP addresses on the network are permitted. These are critical factors to keep in mind. Static IP address assignment An administrator manually configures static IP addresses on a node. The admin sets the desired IP address, subnet mask, default gateway, name server and other values. While the process is usually simple, admins should keep the following points in mind: • The sys admin can make no mistakes or typographical errors and must avoid any duplicate IP address assignments for either static or dynamic addressing. • The process is easy but time-consuming when calcu...

By • The Jacobs Group • Static routing and dynamic routing are two methods used to determine how to send a packet toward its destination. Static routes are configured in advance of any network communication. Dynamic routing, on the other hand, requires routers to exchange information with other routers to learn about paths through the network. Static and dynamic routing are used where appropriate, and some networks use both. What is static routing? Network administrators use static routing, or nonadaptive routing, to define a route when there is a single route or a preferred route for traffic to reach a destination. Static routing uses small routing tables with only one entry for each destination. It also requires less computation time than dynamic routing because each route is preconfigured. Because static routes are preconfigured, administrators must manually reconfigure routes to adapt to changes in the network when they occur. Static routes are generally used in networks where administrators don't expect any changes. What is dynamic routing? Dynamic routing, sometimes called Dynamic routing uses algorithms to compute multiple possible routes and determine the best path for traffic to travel through the network. It uses two types of complex algorithms: distance vector protocols and link state protocols. Both distance vector and link state protocols create a routing table within the router that includes an entry for each possible destination of a network, group of networ...