Structure of IP packet

https://scrapbox.io/files/654f79e6dd7dd9001ceabb8b.png

https://scrapbox.io/files/654f8ead63d881001c103fa1.png

[]Fragment[]

IPv4 only. In IPv6, this operation is optional.

Data will be divided, if (size of data) > MTU

Each divided packet (fragmented packet) has the offset information.

https://scrapbox.io/files/654f99428dc418001bb0e55e.png