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.

All labels observed (2)

Label Occurrences
IPv4 canonical 13
Internet Protocol version 4 4

How this entity was disambiguated

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
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 IETF
successor 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

How these facts were elicited

Referenced by (17)

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

Internet usesAddressingSystem IPv4
subject linked to: the internet
Internet Protocol version 6 replaces Internet Protocol version 4
linked to: IPv4
RFC 791 specifies Internet Protocol version 4
linked to: IPv4
RFC 792 usedByProtocol IPv4
RFC 826 usedBy IPv4
Internet Experiment Note 41 relatedToStandard Internet Protocol version 4
linked to: IPv4
STD 5 standardizes Internet Protocol version 4
linked to: IPv4
STD 5 standardizes IPv4
RFC 950 appliesTo IPv4
RFC 3168 appliesTo IPv4
H-root supportsProtocol IPv4
STD 7 appliesTo IPv4