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+.. _local-prefix-discovery:
+
+Discover local hub prefix
+=========================
+
+Some applications need to discover prefix(es) under which they can publish data
+/ which Interests local hub will be able to forward down to the application.
+In order to discover that, applications need to send an interest for
+``/localhop/ndn-autoconf/routable-prefixes`` prefix. Response data to the
+interest contains a list of prefixes and should be encoded as:
+
+::
+
+    Response ::= DATA-TYPE TLV-LENGTH
+                 Name (= /localhop/ndn-autoconf/routable-prefixes/[version])
+                 MetaInfo (= ResponseMetaInfo)
+                 Content (= ResponseContent)
+                 Signature
+
+    ResponseMetaInfo ::= META-INFO-TYPE TLV-LENGTH
+                         ContentType (= DATA)
+                         FreshnessPeriod (= 5000)
+
+    ResponseContent ::= Name+
+
+.. note::
+ResponseContent should contain at least one Name, which should be routable
+towards the face from which the request has been received.  The requester may
+process list of the returned names and pick whichever it wants to use.
+
+For now, the ``/localhop/ndn-autoconf/routable-prefixes`` data is served by
+:ref:`ndn-autoconfig-server`.