%% You should probably cite draft-ietf-pcp-optimize-keepalives-06 instead of this revision.
@techreport{ietf-pcp-optimize-keepalives-05,
    number =    {draft-ietf-pcp-optimize-keepalives-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-ietf-pcp-optimize-keepalives/05/},
    author =    {Tirumaleswar Reddy.K and Prashanth Patil and Markus Isomaki and Dan Wing},
    title =     {{Optimizing NAT and Firewall Keepalives Using Port Control Protocol (PCP)}},
    pagetotal = 18,
    year =      2014,
    month =     nov,
    day =       11,
    abstract =  {This document describes how Port Control Protocol is useful in reducing NAT and firewall keepalive messages for a variety of applications.},
}