Dynamic IP Address vs Static IP Address



Internet Protocol Address (IP address) can be defined as a 32-bit number as said by the designer of Internet Protocol. Devices like computers and printers are assigned this numerical label which helps in communication with the help of Internet Protocol. At the moment, the system used is called the Internet Protocol Version 4 (IPv4) which will in the near future be succeeded by the new IPv6 version, as the previous version was lacking in staying up to date with the available addresses. An IP address are also considered as binary numbers which are generally stored in text files and shown in human readable notations. IP address has two primary or principal functions, firstly it helps in location addressing and secondly in identification of host or network interface. There are mainly two kinds of IP address: Static IP address and Dynamic IP address.

Static IP Address

Static IP address in that numerical label which is assigned by an Internet Service Provider (IPS) to a computer which implies that the given IP address will be the permanent address for it on the internet. Static IP address helps users to avoid being listed in the IP address blacklist and also protects users from email spam as there is no sharing of IP address. A user can rely on Static IP address for Voice over Internet Protocol (VOIP) as the address is always constant.

Dynamic IP Address

Dynamic IP address is that IP address which is assigned by the system automatically to a user or a device when connected to any network. It is assigned as and when needed by the user and not in advance. It is assigned by Dynamic Host Configuration Protocol (DHCP). Requesting to DHCP the users receive an IP address from an address pool and one the user disconnects from the network and reconnects, a new address is assigned to the user rather than the same address.

Dynamic vs Static IP Address

Dynamic IP addressing is suitable in today's world as the increasing number of users and computers does not allow each user to have a separate address, like in the case of Static IP addressing. One of the major advantages that Dynamic IP address gives to its user is that there is reduced risk as a new address is assigned every time reconnected to the network. Dynamic IP addressing can assign just one address to several users where as Static IP address each user is assigned a separate IP address. The administrator is relieved of his task of assigning different addresses as the software records the IP addresses being assigned. This eventually allows ISPs to have greater number of subscribers as compared to IP addresses. On the contrary, Static IP address is considered to be more reliable as it would not cause disconnection of the service while in use, which may happen while using Dynamic IP address. Dynamic IP address does not allow location addressing and can be considered as a safer option as compared to Static IP address. The choice of using a Static or Dynamic IP address lies in the hands of the user as it should be suitable to the needs and requirements of the user. Also read: My IP Address Keep Changing - Why is That?