%% You should probably cite draft-ietf-l2tpext-proxy-authen-ext-eap instead of this I-D.
@techreport{kelkar-l2tpext-eap-proxy-authen-ext-01,
    number =    {draft-kelkar-l2tpext-eap-proxy-authen-ext-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-kelkar-l2tpext-eap-proxy-authen-ext/01/},
    author =    {Manesh Kelkar},
    title =     {{L2tp Proxy Authenticate Extensions for EAP}},
    pagetotal = 11,
    year =      2005,
    month =     nov,
    day =       28,
    abstract =  {L2TP {[}1{]} defines Proxy Authentication AVPs that MAY be exchanged during session establishment, to provide forwarding of PPP authentication information obtained at the LAC to the LNS for validation. This document defines contents of this PPP authenticate information for the Extensible Authentication Protocol (EAP).},
}