[Ndn-interest] Question about unsatisfied Interests

Marco Ulgelmo marco.ulge at gmail.com
Wed Oct 15 08:01:53 PDT 2014


I've recently began studying how NDN works and i have a question about
unsatisfied Interests.

Lets say that an attacker generates a fake Interest packet that surely
doesn't exist. Let's assume that this packet is identified by the following
name: /google/randomtext

As far as i know i shuold be able to reach /google but i won't be able to
retrieve the content as it doesn't exist.

Considering the following scenario:

Interest -> Router1 -> Router2 -> Content Provider.

Is Router2 able to determine that the content doesn't exist? Can this
information be sent back to Router2 from the Content Provider (which surely
knows that he doesn't have that resource)?


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