Revision as of 06:43, 10 August 2012 edit 2a00:1020:100:210::2 (talk) Sorry! There was 4-bits flag length. Numeric header added. ← Previous edit		Revision as of 17:31, 7 January 2013 edit undo 2620:0:1042:0:baac:6fff:fe9b:17c6 (talk) Grammatical corrections Next edit →
Line 53: Because an IP internet can be connectionless, fragments from one datagram may be interleaved with those from another at the destination. The "Identification field" uniquely identifies the fragments of a particular [[datagram]]. The source system sets "Identification" field in each datagram to a unique value for all datagrams ~~using~~which use the same source IP address, destination IP address, and "Protocol" values, for the lifetime of the datagram on the internet. This way the destination can distinguish which incoming fragments belong to a unique datagram and buffer all of them until the last fragment is received. The last fragment sets the "More Fragment" bit to 0 and this tells the receiving station to start reassembling the data if all fragments have been received. The following is a real-life fragmentation example:

IP fragmentation attack: Difference between revisions