%% You should probably cite rfc7608 instead of this I-D. @techreport{ietf-v6ops-cidr-prefix-03, number = {draft-ietf-v6ops-cidr-prefix-03}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-v6ops-cidr-prefix/03/}, author = {Mohamed Boucadair and Alexandre Petrescu and Fred Baker}, title = {{IPv6 Prefix Length Recommendation for Forwarding}}, pagetotal = 6, year = 2015, month = may, day = 26, abstract = {IPv6 prefix length, as in IPv4, is a parameter conveyed and used in IPv6 routing and forwarding processes in accordance with the Classless Inter-domain Routing (CIDR) architecture. The length of an IPv6 prefix may be any number from zero to 128, although subnets using stateless address autoconfiguration (SLAAC) for address allocation conventionally use a /64 prefix. Hardware and software implementations of routing and forwarding should therefore impose no rules on prefix length, but implement longest-match-first on prefixes of any valid length.}, }