%% You should probably cite draft-ietf-netext-pmipv6-sipto-option instead of this I-D.
@techreport{gundavelli-netext-pmipv6-sipto-option-01,
    number =    {draft-gundavelli-netext-pmipv6-sipto-option-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-gundavelli-netext-pmipv6-sipto-option/01/},
    author =    {Sri Gundavelli and Xingyue Zhou and Rajeev Koodli and Jouni Korhonen},
    title =     {{IP Traffic Offload Selector Option for Proxy Mobile IPv6}},
    pagetotal = 10,
    year =      2011,
    month =     jul,
    day =       5,
    abstract =  {This specification defines a mechanism and a related mobility option for carrying IP Offload traffic selectors between a mobile access gateway and a local mobility anchor in a Proxy Mobile IPv6 domain. Based on the received offload flow selectors from the local mobility anchor, a mobile access gateway can enable offload traffic rule on the selected IP flows.},
}