Updated documentation

docs/manual/_sources/interfaces.rst.txt

@@ -1207,6 +1207,13 @@ These can be used to control various aspects of interface behaviour.
      link or a remote TCP tunnel) solely to discover better local
      infrastructure, which then supersedes the bootstrap interface.
 
+
+ * | The ``recursive_prs`` option allows you to enable recursive path
+     discovery on an interface regardless of its configured interface
+     mode. When this option is enabled, Reticulum will attempt to
+     recursively discover paths for path requests received on this
+     interface.
+
 .. _interfaces-modes:
 
 Interface Modes
@@ -1284,6 +1291,15 @@ the default mode.
      public Transport Node available on the Internet, the interface
      connecting over the Internet should be set to ``boundary`` mode.
 
+ * | The ``internal`` mode designates interfaces that belong to an
+     network different from any marked as ``boundary``. Announces from
+     a ``boundary`` interface will not propagate to interfaces set as
+     ``internal``, but announces *will* propagate from ``internal`` *to*
+     ``boundary``. Devices on the ``internal`` side of the network will
+     still be able to resolve paths to destinations across the boundary
+     when needed, since recursive path requests are enabled for ``internal``
+     mode interfaces by default.
+
 For a table describing the impact of all modes on announce propagation,
 please see the :ref:`Announce Propagation Rules<understanding-announcepropagation>` section.
 

docs/manual/_sources/understanding.rst.txt

@@ -707,32 +707,58 @@ Announce Propagation Rules
 
 The following table illustrates the rules for automatically propagating announces from one interface type to another, for all possible combinations. For the purpose of announce propagation, the *Full* and *Gateway* modes are identical.
 
+See the :ref:`Interface Modes<interfaces-modes>` section for a conceptual overview of the different interface modes, and how they are configured.
+
 .. image:: graphics/if_mode_graph_b.png
 
-See the :ref:`Interface Modes<interfaces-modes>` section for a conceptual overview of the different interface modes, and how they are configured.
+Or, represented in table form:
+
+.. image:: graphics/if_mode_graph_c.png
 
 .. 
       (.. code-block:: text)
       Full ────── ✓ ──┐              ┌── ✓ ── Full
-      AP ──────── ✓ ──┼───> Full >───┼── ✕ ── AP
-      Boundary ── ✓ ──┤              ├── ✓ ── Boundary
+      AP ──────── ✓ ──┤              ├── ✕ ── AP
+      Boundary ── ✓ ──┼───> Full >───┼── ✓ ── Boundary
+      Internal ── ✓ ──┤              ├── ✓ ── Internal
       Roaming ─── ✓ ──┘              └── ✓ ── Roaming
 
       Full ────── ✕ ──┐              ┌── ✓ ── Full
-      AP ──────── ✕ ──┼────> AP >────┼── ✕ ── AP
-      Boundary ── ✕ ──┤              ├── ✓ ── Boundary
+      AP ──────── ✕ ──┤              ├── ✕ ── AP
+      Boundary ── ✕ ──┼────> AP >────┼── ✓ ── Boundary
+      Internal ── ✕ ──┤              ├── ✓ ── Internal
       Roaming ─── ✕ ──┘              └── ✓ ── Roaming
 
       Full ────── ✓ ──┐              ┌── ✓ ── Full
-      AP ──────── ✓ ──┼─> Roaming >──┼── ✕ ── AP
-      Boundary ── ✕ ──┤              ├── ✕ ── Boundary
+      AP ──────── ✓ ──┤              ├── ✕ ── AP
+      Boundary ── ✕ ──┼─> Roaming >──┼── ✕ ── Boundary
+      Internal ── ✕ ──┤              ├── ✕ ── Internal
       Roaming ─── ✕ ──┘              └── ✕ ── Roaming
 
       Full ────── ✓ ──┐              ┌── ✓ ── Full
-      AP ──────── ✓ ──┼─> Boundary >─┼── ✕ ── AP
-      Boundary ── ✓ ──┤              ├── ✓ ── Boundary
+      AP ──────── ✓ ──┤              ├── ✕ ── AP
+      Boundary ── ✓ ──┼─> Boundary >─┼── ✓ ── Boundary
+      Internal ── ✓ ──┤              ├── ✕ ── Internal
       Roaming ─── ✕ ──┘              └── ✕ ── Roaming
 
+      Full ────── ✓ ──┐              ┌── ✓ ── Full
+      AP ──────── ✓ ──┤              ├── ✕ ── AP
+      Boundary ── ✕ ──┼─> Internal >─┼── ✓ ── Boundary
+      Internal ── ✓ ──┤              ├── ✓ ── Internal
+      Roaming ─── ✕ ──┘              └── ✕ ── Roaming
+
+                dest →   Full   AP   Boundary   Roaming    Gateway   Internal
+      source ↓                                                            
+      Full                ✓     ✕      ✓          ✓           ✓         ✓
+      Gateway             ✓     ✕      ✓          ✓           ✓         ✓
+      AP                  ✓     ✕      ✓          ✓           ✓         ✓
+      Boundary            ✓     ✕      ✓          ✕           ✓         ✕
+      Internal            ✓     ✕      ✓          ✕           ✓         ✓
+      Roaming             ✓     ✕      ✕          ✕           ✓         ✕
+
+      ✓ Will rebroadcast announce
+      ✕ Will not rebroadcast announce
+
 
 .. _understanding-primitives: