%% You should probably cite rfc7600 instead of this I-D. @techreport{ietf-softwire-4rd-04, number = {draft-ietf-softwire-4rd-04}, 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-softwire-4rd/04/}, author = {Sheng Jiang and Rémi Després and Reinaldo Penno and Yiu Lee and Gang Chen and Maoke Chen}, title = {{IPv4 Residual Deployment via IPv6 - a Stateless Solution (4rd)}}, pagetotal = 39, year = 2012, month = oct, day = 22, abstract = {The 4rd automatic tunneling mechanism makes IPv4 Residual Deployment possible via IPv6 networks without maintaining for this per-customer states in 4rd-capable nodes (reverse of the IPv6 Rapid Deployment of 6rd). To cope with the IPv4 address shortage, customer sites can be assigned shared public IPv4 addresses with restricted port sets.}, }