1. classful - Noun
2. classful - Adjective
classful (not comparable)
(computing, Internet) Of or relating to a network-addressing architecture that divides the address space into a number of classes.
classful (plural classfuls or classesful)
An amount that fills a class.
Fragmentation is like classful addressing -- an interesting early architectural error that shows how much experimentation was going on while IP was being designed. Paul Vixie
In the absence of a specific mask, it would use either the mask of a directly connected interface in the same classful network, or fall back to using the classful mask. Source: Internet
Skipped up to fifth grade, Ling discovers that she's forced to share lessons with a classful of bullies, all aspiring Young Pioneers for the Red Guard who accuse her of being a bourgeois. Source: Internet
In 1981, the Internet addressing specification was revised with the introduction of classful network architecture. Source: Internet
In the previous classful network architecture of Internet Protocol Version 4, IP address allocations were based on the bit boundaries of the four octets of an IP address. Source: Internet
The no auto-summary command prevents automatic route summarization on classful boundaries, which would otherwise result in routing loops in discontiguous networks. Source: Internet