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fixup: port range
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matzf committed Mar 26, 2024
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6 changes: 4 additions & 2 deletions doc/dev/design/router-port-dispatch.rst
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Expand Up @@ -80,7 +80,7 @@ For SCMP :ref:`Echo Replies <echo-reply>` and :ref:`Traceroute Replies <tracerou
SCMP Daemon
^^^^^^^^^^^

The remaining functionality of the dispatcher, namely responding to SCMP echo requests, is implemented to a new, very simple "SCMP daemon".
The remaining functionality of the dispatcher, namely responding to SCMP echo requests, is implemented in a new, very simple "SCMP daemon".
This daemon opens UDP/IP port 30041, where it receives and replies to SCMP Echo requests.
On this port, it will also receive any packet where an appropriate destination port could not be determined (e.g. SCMP error messages for malformed packages).
These events are only logged and counted, but otherwise no appropriate action is possible.
Expand Down Expand Up @@ -178,8 +178,10 @@ The configured ``max`` value may be lower than ``min`` to specify an empty port
If nothing is configured, the port range initially defaults to an empty range.
The recommended port range is:
- ``min``: ``31000``
- ``max``: ``39999``
- ``max``: ``32767``

This range is just below the port range that is assigned by the old dispatcher (32768-65535),
ensuring that legacy end hosts will be unaffected by the port dispatching in the router.
As later step, this range will be adopted as the default.

Rationale
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