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  2. Internet checksum - Wikipedia

    en.wikipedia.org/wiki/Internet_checksum

    The Internet checksum, [1] [2] also called the IPv4 header checksum is a checksum used in version 4 of the Internet Protocol (IPv4) to detect corruption in the header of IPv4 packets. It is carried in the IP packet header , and represents the 16-bit result of summation of the header words.

  3. IPv4 - Wikipedia

    en.wikipedia.org/wiki/IPv4

    Internet Protocol version 4 (IPv4) is the first version of the Internet Protocol (IP) ... the router must calculate a new header checksum before sending it out again.

  4. IP in IP - Wikipedia

    en.wikipedia.org/wiki/IP_in_IP

    Not to be mistaken with value 4 in the Version field, which indicates IPv4. Header Checksum: 16 bits This field is the IP checksum of outer header. Source IP Address: 32 bits This field is the IP address of the encapsulator. Destination IP Address: 32 bits This field is the IP address of the decapsulator.

  5. Checksum - Wikipedia

    en.wikipedia.org/wiki/Checksum

    The content of such spam may often vary in its details, which would render normal checksumming ineffective. By contrast, a "fuzzy checksum" reduces the body text to its characteristic minimum, then generates a checksum in the usual manner. This greatly increases the chances of slightly different spam emails producing the same checksum.

  6. Generic routing encapsulation - Wikipedia

    en.wikipedia.org/wiki/Generic_Routing_Encapsulation

    (For IPv4, this would be hex 0800.) Checksum (16 bits) Present if the C bit is set; contains the checksum for the GRE header and payload. Reserved 1 (16 bits) Present if the C bit is set; is set to 0. Key (32 bits) Present if the K bit is set; contains an application-specific key value. Sequence Number (32 bits)

  7. Move Over 'Rage Applying' And 'Quiet Quitting,' 2025 Will Be ...

    www.aol.com/finance/move-over-rage-applying...

    Many are using this retirement income calculator to check if they’re on pace ...

  8. Transmission Control Protocol - Wikipedia

    en.wikipedia.org/wiki/Transmission_Control_Protocol

    When TCP runs over IPv4, the method used to compute the checksum is defined as follows: [16] The checksum field is the 16-bit ones' complement of the ones' complement sum of all 16-bit words in the header and text. The checksum computation needs to ensure the 16-bit alignment of the data being summed.

  9. Colon cancer: Measuring ‘biological age’ may help predict who ...

    www.aol.com/lifestyle/colon-cancer-measuring...

    One’s biological age, which measures the body’s physiological state, may help predict who is at risk for developing colon polyps, a known risk factor for colorectal cancer.