IPV4 is the latest version of the Internet Protocol. It is also known as IPTV or IP Telephony. It is the core technology of many packet-switched and standards-based network protocols in the Internet and several other packet-switching network protocols.
Internet Protocol version 4 (IPv4) is a general-purpose networking protocol with which different devices communicate over IP networks, such as the Internet. IPV4 was the first commercial standard-based protocol of IP networking methods in the world, followed by the IPTV and IP telephony protocols. The main advantage of IPV4 is its malleability to allow IP packets to be fragmented into smaller pieces so that they can be delivered to different devices and IP numbers, such as IP phones. This has allowed IPV4 to support digital video and audio streams, which are much simpler than the previous standards-based IP transmissions. Another major advantage of IPV4 is portability: it is possible to connect IPV4 devices to each other and to the Internet using the same network connection, which eliminates the need for making long-distance calls.
On the other hand, there are some IPV4 disadvantages that were pointed out by some IT professionals. One of these is that the IPV4 system cannot efficiently provide address fragments, which are pieces of IP address with the same value but differ in length. Fragmentation occurs most commonly when two IPV4 systems attempt to forward a broadcast IP signal. For this reason, it is recommended that organizations use the simplified broadcasting protocol (SSP) instead of IPV4.
Another issue is the quality of service (QoS). The quality of service (QoS) refers to the quality of service provided by an IP network. In the past, IP networks used stateful packet filtering in order to provide IPV4-like quality of service (QoS). Nowadays, however, IPV6 addresses are advertised in a standard way, which does not require stateful packet filtering. However, some businesses have implemented QoS techniques, and IPV6 is becoming the preferred protocol for them.
One of the most notable differences between IPV4 and IPV6 is the lack of backward compatibility with the previous version. In the case of IPV4, the older version used to be plugged into the firewall and forwarded to IP-based devices, while leaving all other IP-based devices unconnected. This resulted in some disruptions in the normal operation of certain IP-based business applications. IPV6 introduces a new technology called Quality of Service (QoS) which enables IP-based devices to interact normally with other IP devices and IP servers without going through the firewall. This allows IPV4 to be used with both VoIP phones as well as traditional PPPoE-enabled phones.
Besides making it easier for IPV4 to be used with different devices, IPV6 also has a number of advanced features that make it more efficient than its predecessor. Among these features is support for Automatic Data Conversion (ADC). With this feature, an IP phone can convert a voice signal into IP packets with the help of a virtual length subnet mask. An IPV4 device receives the voice signal and then the virtual IP subnet mask is appended onto the original IP signal so that it can be translated back to a regular IP packet. Such a feature makes it possible for IPV4 to route voice traffic on different paths, according to the best available path available.