@techreport{richardson-ipsec-traversal-01,
    number =    {draft-richardson-ipsec-traversal-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-richardson-ipsec-traversal/01/},
    author =    {Kai Martius and Michael Richardson},
    title =     {{Firewall Traversal authorization system}},
    pagetotal = 10,
    year =      1997,
    month =     jul,
    day =       10,
    abstract =  {This document describes a public key certificate mechanism to authorize traversal of multiple security gateways (firewalls). This work is independant of transport layer in concept, and could apply to IPsec, TLS, or SecSH. It is applied here to IPsec. The SPKI certificate format is used here.},
}