What is an IP Packet? And How IP Packets Works?

What is an IP Packet? And How IP Packets Works?

IP packets are used in Internet Protocol (IP) transmissions to transmit data from a source device to a destination device. IP packets are the most important and fundamental components of the Internet Protocol. They are structures that convey data during transmission. IP packets also have a header that holds important information helping them to find their way and to reassemble after transmission.
What is an IP Packet? And How IP Packets Works?
What is an IP Packet? And How IP Packets Works?
The two important functions of the Internet Protocol are routing and addressing. To route IP packets to and from machines on a network, Internet Protocol uses IP addresses which are carried along in the packets.

Note: There Are Two Types Of IP Packets: 1. IPv4 And 2. IPv6.

Additional Information on IP Packets

1. The identity tag is used to help reassemble the IP packet from various eventual fragments. When data is sent over a network, it is divided into small sections which are enveloped in these Data packets (IP Packets). IP networks, Like the internet, are usually not secure, so IP packets can be stolen or lost, can be delayed, and can arrive in the wrong order. Once they arrive at the destination device, the identity tag helps to identify the packet and to reassemble the data back to its original form.

2. The fragmented flag states whether the packet can be fragmented or not.

3. The fragment offset is a zone to identify which fragment this IP packet is attached to.

4. TTL is a number that indicates how many hops (router passes) the IP packet can make before it dies. Normally, at each router, a data packet is analyzed and based on the information present at that router on other neighboring routers, a choice is made as to which route is best. 

The packet is then forwarded to that next router. In this configuration, an IP packet may well go round. There is also flooding as another method, which implies sending a copy of the packet to each neighboring router; then only the target machine consumes the packet. Other packets will keep roaming. 'Time To Live' is a number, normally 255, which decreases each time a packet passes a router. This way, redundant packets will ultimately die once the Time to Live reaches zero. 

5. A header checksum is a number used for error detection and correction during data packet transmission. The data in the packet is fed into a mathematical algorithm that results in a sum, which is sent along with the data in the packet. Upon reception, this sum is calculated again using the same algorithm. If it is the same as the original sum, the data is good, else it is considered corrupt and the packet discarded. 

6. The payload is the actual data being carried. Notice that data payload can be up to 64 KB (KiloBytes), which is big compared to the totality of the header bits.
    What is an IP Packet? And How IP Packets Works? What is an IP Packet? And How IP Packets Works? Reviewed by Technowap on June 12, 2019 Rating: 5

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