Final Presentation

The IP address (Internet Protocol address) is the number that devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP). An IP address is somewhat similar to the Telephone number. Every server, client and devices have this unique address for their identification. IP addresses are written in "dotted decimal" notation, which is four sets of numbers separated by periods; for example, 204.171.64.2. An IP address is first divided between networks and hosts. The host bits are further divided between subnets and hosts.

Static IP addresses are used to identify semi-permanent devices with constant IP addresses. Servers typically use static IP addresses. The static address can be configured directly on the device or as part of a central DHCP configuration which associates the device's MAC address with a static address. Routers, firewalls and proxy servers use static addresses as do most servers and printers that serve multiple users. These IPs are normally used in LAN and small-scale WAN.

The IP address assigned to your service by your cable or DSL Internet provider is typically dynamic IP. In routers and operating systems, the default configuration for clients is dynamic IP (Client machines may use Static or Dynamic IP address). Dynamic IP address allocation requires a server to listen for requests and then assign an address. Addresses can be assigned at randomly or based on a predetermined policy. The most common protocol used to dynamically assign addresses is Dynamic Host Configuration Protocol (DHCP).

Addresses can be assigned at randomly or based on a predetermined policy. The most common protocol used to dynamically assign addresses is Dynamic Host Configuration Protocol (DHCP). DHCP includes a lease time which determines how long the requester can use an address before requesting its renewal, allowing addresses to be reclaimed if the requester goes offline.