@techreport{ng-intarea-tunnel-loop-00,
    number =    {draft-ng-intarea-tunnel-loop-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ng-intarea-tunnel-loop/00/},
    author =    {Chan-Wah Ng and Benjamin Lim and Mohana Jeyatharan},
    title =     {{Tunnel Loops and its Detection}},
    pagetotal = 12,
    year =      2008,
    month =     oct,
    day =       26,
    abstract =  {Many protocols in the Internet Protocol suite use packet encapsulations. This runs into the danger of forming a tunnel loop. Since each tunnel entry point encapsulates the inner packet with a tunnel packet header that contains a new hop count, a packet entering a tunnel loop may be routed infinitely, consuming network resources. Although there exist methods to cause a packet in a tunnel loop to be discarded eventually, it would be more desirable to detect the presence of a tunnel loop and act accordingly. This draft explores the possibility for tunnel entry points to detect the presence of a tunnel loop by using an extra identifier tagged to the outer packet header.},
}