IPv4

E1269

IPv4 is the fourth version of the Internet Protocol, providing a 32-bit address space that underpins most of today’s internet routing and communication.

Aliases (1)

Statements (57)
Predicate Object
instanceOf Internet Protocol version
network layer protocol
packet-switched protocol
addressLength 32 bits
addressSpaceSize 32-bit
4,294,967,296 addresses
coexistsWith IPv6
commonlyUsedWith ICMP
Transmission Control Protocol
surface form: "TCP"

UDP
currentAddressingScheme classless addressing
definedIn RFC 791
doesNotProvide built-in authentication
built-in encryption
guaranteed delivery
hasLimitation address exhaustion
headerField destination address
flags
fragment offset
header checksum
header length
identification
options
protocol
source address
time to live
total length
type of service
version
headerMaximumSize 60 bytes
headerMinimumSize 20 bytes
introducedInYear 1981
layerInOSIModel network layer
mitigatedBy Classless Inter-Domain Routing
Network Address Translation
originalAddressingScheme classful addressing
predecessor IPv3
primaryFunction logical addressing of hosts
packet routing across interconnected networks
provides connectionless service
publishedBy Internet Engineering Task Force
standardizedBy Internet Engineering Task Force
surface form: "IETF"
successor Internet Protocol version 6
surface form: "IPv6"
supports fragmentation
options field
time-to-live field
supportsAddressTypes broadcast
multicast
unicast
transitionMechanismUsedWith dual stack
translation gateways
tunneling
typicalAddressExample 192.168.0.1
uses best-effort delivery
usesAddressNotation dotted-decimal notation
usesChecksumFor header only
widelyDeployedOn global Internet

Referenced by (11)

Full triples — surface form annotated when it differs from this entity's canonical label.

RFC 3168 appliesTo IPv4
RFC 950 appliesTo IPv4
this entity surface form: "Internet Protocol version 4"
this entity surface form: "Internet Protocol version 4"
RFC 791 specifies IPv4
this entity surface form: "Internet Protocol version 4"
STD 5 standardizes IPv4
this entity surface form: "Internet Protocol version 4"
STD 5 standardizes IPv4
RFC 826 usedBy IPv4
RFC 792 usedByProtocol IPv4
subject surface form: "Internet"

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