WebThe Flags field in an IPv4 header can be set to different values, depending on fragmentation requirements. Of the following, which is correct about the options that can be set in this field? The values can be set to allow more fragmentation or prohibit more fragmentation, depending on the network's requirements. WebNov 17, 2024 · The fields in the IP header and their descriptions are. Version—A 4-bit field that identifies the IP version being used. The current version is 4, and this version is referred to as IPv4. Length—A 4-bit field containing the length of the IP header in 32-bit increments. The minimum length of an IP header is 20 bytes, or five 32-bit increments.
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WebJan 16, 2024 · 1 1 You should be specific. I think you mean the IPv4 header because there is no such field in the IPv6 header, so it is not universal for IP. RFC 791, Internet Protocol explains the Identification field: "An identifying value assigned by the sender to aid in assembling the fragments of a datagram." WebOct 10, 2012 · IPv4 Packet and Header. Version —Currently set to 0x04 for IPv4. Header Length —Technically, this is the Internet header length (IHL). It is the length of the IP header in 4-byte (32-bit) units known as “words,” and includes any option fields present and padding needed to align the header on a 32-bit boundary. easyfirepits.com
IPv4 Datagram Baeldung on Computer Science
WebMar 9, 2024 · The IPv4 header is defined in RFC 791 Clause 3.1. Bit 0 in the flags field is reserved and "must be zero". It's also called the Evil Bit and all hell will break loose if it's ever set to 1. Currently-assigned values are defined as follows: 0x0 If the bit is set to 0, the packet has no evil intent. WebJun 15, 2012 · This field provides functionality similar to the IPv4 Type of Service field. Like the Type of Service field in the IPv4 header, the first 6 bits of the Traffic Class field represent the DSCP field as defined in RFC 2474, and the last 2 bits are used for ECN as defined in RFC 3168. WebJun 15, 2012 · The Fragment Offset, More Fragments flag, and Identification fields are used in the same way as the corresponding fields in the IPv4 header. Because the use of the Fragment Offset field is defined for 8-byte fragment blocks, the Fragment header cannot be used for jumbograms. easy fire pit designs