%% You should probably cite draft-ietf-behave-lsn-requirements instead of this I-D.
@techreport{nishitani-cgn-05,
    number =    {draft-nishitani-cgn-05},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-nishitani-cgn/05/},
    author =    {Ikuhei Yamagata and Shin Miyakawa and Akira Nakagawa and Hiroyuki Ashida},
    title =     {{Common requirements for IP address sharing schemes}},
    pagetotal = 22,
    year =      2010,
    month =     jul,
    day =       12,
    abstract =  {This document defines common requirements of multiple types of Large Scale Network Address Translation (NAT) that handles Unicast UDP, TCP and ICMP.},
}