IP Packet Format

• Version:

  • Indicates the version of IP currently used.

• IP header length (IHL):

  • Indicates the datagram header length in 32-bit words.

• Type-of-service:

  • Specifies how a particular upper-layer protocol would like the current datagram to be handled. Datagrams can be assigned various levels of importance through this field.

• Total length:

  • Specifies the length of the entire IP packet, including data and header, in bytes.

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