ICMP Destination Unreachable (Fragmentation Needed)

GPTKB entity

Statements (19)
Predicate Object
gptkbp:instanceOf ICMP message type
gptkbp:alsoKnownAs ICMP Type 3 Code 4
gptkbp:category Network protocol message
gptkbp:contains Next-Hop MTU field
gptkbp:definedIn gptkb:RFC_792
https://www.w3.org/2000/01/rdf-schema#label ICMP Destination Unreachable (Fragmentation Needed)
gptkbp:ICMPCode 4
gptkbp:ICMPType 3
gptkbp:indication Don't Fragment (DF) bit is set
Packet cannot be forwarded without fragmentation
gptkbp:response IP packet with DF bit set and size greater than MTU
gptkbp:sentBy Routers
gptkbp:supportsProtocol gptkb:ICMP
gptkbp:usedBy Operating systems
Network devices
gptkbp:usedFor gptkb:Path_MTU_Discovery
gptkbp:usedIn gptkb:IPv4
gptkbp:bfsParent gptkb:path_MTU_discovery
gptkbp:bfsLayer 7