%% You should probably cite rfc6521 instead of this I-D.
@techreport{ietf-mip4-nemo-haaro-07,
    number =    {draft-ietf-mip4-nemo-haaro-07},
    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-mip4-nemo-haaro/07/},
    author =    {Antti Makela and Jouni Korhonen},
    title =     {{Home Agent-Assisted Route Optimization between Mobile IPv4 Networks}},
    pagetotal = 53,
    year =      2011,
    month =     nov,
    day =       16,
    abstract =  {This document describes a home agent-assisted route optimization functionality for the IPv4 Network Mobility Protocol. The function is designed to facilitate optimal routing in cases where all nodes are connected to a single home agent; thus, the use case is route optimization within a single organization or similar entity. The functionality enables the discovery of eligible peer nodes (based on information received from the home agent) and their network prefixes, and the establishment of a direct tunnel between such nodes. This document defines an Experimental Protocol for the Internet community.},
}