%% You should probably cite rfc6867 instead of this I-D.
@techreport{nir-ipsecme-erx-04,
    number =    {draft-nir-ipsecme-erx-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-nir-ipsecme-erx/04/},
    author =    {Yoav Nir and Qin Wu},
    title =     {{An IKEv2 Extension for Supporting ERP}},
    pagetotal = 8,
    year =      2012,
    month =     may,
    day =       21,
    abstract =  {This document describes an extension to the IKEv2 protocol that allows an IKE Security Association (SA) to be created and authenticated using the EAP Re-authentication Protocol extension as described in RFC 5296bis. NOTE TO RFC EDITOR: Replace 5296bis in the previous paragraph with the RFC number assigned to draft-ietf-hokey-rfc5296bis (now in the RFC Editor queue)},
}