Static And Dynamic Ip address
A Static IP address is where a computer uses the same address every time, as opposed to situations where the user IP address changes frequently, when a user logs on to a network by dialup or on shared residential cable. Static addressing is essential in some infrastructure situations, such as finding the Domain Name Service directory host that will translate names to numbers.
Static addresses are convenient, but not absolutely necessary, to locate servers inside an enterprise. An address obtained from a DNS server comes with a lifetime argument, after which it should be looked up to confirm that it has not changed. Addresses do change as a result of network administration (RFC 2072).
This contrasts with a Dynamic IP address, wherein an IP address is assigned to a computer, usually by a remote server which is acting as a Dynamic Host Configuration Protocol server. IP addresses assigned using DHCP may change depending on the addresses available in the set scope. Dynamic IP Addresses assigned by Dynamic Host Configuration Protocol servers are used because it reduces the administrative burden of assigning static addresses within a network.
Static addresses are convenient, but not absolutely necessary, to locate servers inside an enterprise. An address obtained from a DNS server comes with a lifetime argument, after which it should be looked up to confirm that it has not changed. Addresses do change as a result of network administration (RFC 2072).
This contrasts with a Dynamic IP address, wherein an IP address is assigned to a computer, usually by a remote server which is acting as a Dynamic Host Configuration Protocol server. IP addresses assigned using DHCP may change depending on the addresses available in the set scope. Dynamic IP Addresses assigned by Dynamic Host Configuration Protocol servers are used because it reduces the administrative burden of assigning static addresses within a network.
