4.6.1 006: Definition of requirement

Currently klips1 apparently identifies a tunnel by what remote subnet it serves. That means that if a new tunnel is brought up serving the same subnet, it supersedes the previous one.

A more complex semantic is required, and a way to express it:

• sometimes you do want the new tunnel to supersede the old one.
• sometimes you want the new tunnel to operate in parallel, using equal-cost multipath, for load sharing.
• sometimes you want the new tunnel to just sit there in standby mode, to be used later
  • for fail-over
  • for mobililty