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346 lines
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ReStructuredText
346 lines
9.0 KiB
ReStructuredText
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.. _interfaces-main:
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********************
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Supported Interfaces
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********************
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Reticulum supports using many kinds of devices as networking interfaces, and
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allows you to mix and match them in any way you choose. The number of distinct
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network topologies you can create with Reticulum is more or less endless, but
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common to them all is that you will need to define one or more *interfaces*
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for Reticulum to use.
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The following sections describe the interfaces currently available in Reticulum,
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and gives example configurations for the respective interface types.
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For a high-level overview of how networks can be formed over different interface
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types, have a look at the :ref:`Building Networks<networks-main>` chapter of this
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manual.
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.. _interfaces-udp:
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UDP Interface
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=============
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A UDP interface can be useful for communicating over IP networks, both
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private and the internet. It can also allow broadcast communication
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over IP networks, so it can provide an easy way to enable connectivity
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with all other peers on a local area network.
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The below example is enabled by default on new Reticulum installations,
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as it provides an easy way to get started and to test Reticulum on a
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pre-existing LAN.
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.. code::
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# This example enables communication with other
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# local Reticulum peers over UDP.
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[[Default UDP Interface]]
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type = UDPInterface
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interface_enabled = True
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outgoing = True
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listen_ip = 0.0.0.0
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listen_port = 4242
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forward_ip = 255.255.255.255
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forward_port = 4242
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# The above configuration will allow communication
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# within the local broadcast domains of all local
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# IP interfaces. This is enabled by default as an
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# easy way to get started, but you might want to
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# consider altering it to something more specific.
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# Instead of specifying listen_ip, listen_port,
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# forward_ip and forward_port, you can also bind
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# to a specific network device like below.
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# device = eth0
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# port = 4242
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# Assuming the eth0 device has the address
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# 10.55.0.72/24, the above configuration would
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# be equivalent to the following manual setup.
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# Note that we are both listening and forwarding to
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# the broadcast address of the network segments.
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# listen_ip = 10.55.0.255
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# listen_port = 4242
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# forward_ip = 10.55.0.255
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# forward_port = 4242
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# You can of course also communicate only with
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# a single IP address
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# listen_ip = 10.55.0.15
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# listen_port = 4242
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# forward_ip = 10.55.0.16
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# forward_port = 4242
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.. _interfaces-tcps:
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TCP Server Interface
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====================
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The TCP Server interface is suitable for allowing other peers to connect over
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the Internet or private IP networks. When a TCP server interface has been
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configured, other Reticulum peers can connect to it with a TCP Client interface.
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.. code::
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# This example demonstrates a TCP server interface.
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# It will listen for incoming connections on the
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# specified IP address and port number.
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[[TCP Server Interface]]
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type = TCPServerInterface
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interface_enabled = True
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outgoing = True
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# This configuration will listen on all IP
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# interfaces on port 4242
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listen_ip = 0.0.0.0
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listen_port = 4242
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# Alternatively you can bind to a specific IP
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# listen_ip = 10.0.0.88
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# listen_port = 4242
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# Or a specific network device
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# device = eth0
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# port = 4242
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.. _interfaces-tcpc:
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TCP Client Interface
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====================
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To connect to a TCP server interface, you would naturally use the TCP client
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interface. Many TCP Client interfaces from different peers can connect to the
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same TCP Server interface at the same time.
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.. code::
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# Here's an example of a TCP Client interface. The
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# target_host can either be an IP address or a hostname.
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[[TCP Client Interface]]
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type = TCPClientInterface
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interface_enabled = True
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outgoing = True
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target_host = 127.0.0.1
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target_port = 4242
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.. _interfaces-rnode:
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RNode LoRa Interface
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====================
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To use Reticulum over LoRa, the `RNode <https://unsigned.io/rnode/>`_ interface
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can be used, and offers full control over LoRa parameters.
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.. code::
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# Here's an example of how to add a LoRa interface
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# using the RNode LoRa transceiver.
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[[RNode LoRa Interface]]
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type = RNodeInterface
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# Enable interface if you want use it!
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interface_enabled = True
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# Allow transmit on interface. Setting
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# this to false will create a listen-
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# only interface.
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outgoing = true
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# Serial port for the device
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port = /dev/ttyUSB0
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# Set frequency to 867.2 MHz
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frequency = 867200000
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# Set LoRa bandwidth to 125 KHz
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bandwidth = 125000
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# Set TX power to 7 dBm (5 mW)
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txpower = 7
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# Select spreading factor 8. Valid
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# range is 7 through 12, with 7
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# being the fastest and 12 having
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# the longest range.
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spreadingfactor = 8
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# Select coding rate 5. Valid range
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# is 5 throough 8, with 5 being the
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# fastest, and 8 the longest range.
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codingrate = 5
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# You can configure the RNode to send
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# out identification on the channel with
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# a set interval by configuring the
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# following two parameters.
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# id_callsign = MYCALL-0
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# id_interval = 600
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# For certain homebrew RNode interfaces
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# with low amounts of RAM, using packet
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# flow control can be useful. By default
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# it is disabled.
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flow_control = False
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.. _interfaces-serial:
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Serial Interface
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================
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Reticulum can be used over serial ports directly, or over any device with a
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serial port, that will transparently pass data. Useful for communicating
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directly over a wire-pair, or for using devices such as data radios and lasers.
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.. code::
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[[Serial Interface]]
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type = SerialInterface
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interface_enabled = True
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outgoing = True
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# Serial port for the device
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port = /dev/ttyUSB0
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# Set the serial baud-rate and other
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# configuration parameters.
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speed = 115200
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databits = 8
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parity = none
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stopbits = 1
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.. _interfaces-kiss:
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KISS Interface
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==============
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With the KISS interface, you can use Reticulum over a variety of packet
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radio modems and TNCs, including `OpenModem <https://unsigned.io/openmodem/>`_.
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KISS interfaces can also be configured to periodically send out beacons
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for station identification purposes.
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.. code::
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[[Packet Radio KISS Interface]]
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type = KISSInterface
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interface_enabled = True
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outgoing = true
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# Serial port for the device
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port = /dev/ttyUSB1
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# Set the serial baud-rate and other
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# configuration parameters.
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speed = 115200
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databits = 8
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parity = none
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stopbits = 1
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# Set the modem preamble.
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preamble = 150
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# Set the modem TX tail.
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txtail = 10
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# Configure CDMA parameters. These
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# settings are reasonable defaults.
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persistence = 200
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slottime = 20
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# You can configure the interface to send
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# out identification on the channel with
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# a set interval by configuring the
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# following two parameters. The KISS
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# interface will only ID if the set
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# interval has elapsed since it's last
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# actual transmission. The interval is
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# configured in seconds.
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# This option is commented out and not
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# used by default.
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# id_callsign = MYCALL-0
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# id_interval = 600
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# Whether to use KISS flow-control.
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# This is useful for modems that have
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# a small internal packet buffer, but
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# support packet flow control instead.
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flow_control = false
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.. _interfaces-ax25:
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AX.25 KISS Interface
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====================
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If you're using Reticulum on amateur radio spectrum, you might want to
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use the AX.25 KISS interface. This way, Reticulum will automatically
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encapsulate it's traffic in AX.25 and also identify your stations
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transmissions with your callsign and SSID.
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Only do this if you really need to! Reticulum doesn't need the AX.25
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layer for anything, and it incurs extra overhead on every packet to
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encapsulate in AX.25.
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A more efficient way is to use the plain KISS interface with the
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beaconing functionality described above.
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.. code::
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[[Packet Radio AX.25 KISS Interface]]
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type = AX25KISSInterface
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# Set the station callsign and SSID
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callsign = NO1CLL
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ssid = 0
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# Enable interface if you want use it!
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interface_enabled = True
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# Allow transmit on interface.
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outgoing = True
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# Serial port for the device
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port = /dev/ttyUSB2
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# Set the serial baud-rate and other
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# configuration parameters.
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speed = 115200
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databits = 8
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parity = none
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stopbits = 1
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# Set the modem preamble. A 150ms
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# preamble should be a reasonable
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# default, but may need to be
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# increased for radios with slow-
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# opening squelch and long TX/RX
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# turnaround
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preamble = 150
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# Set the modem TX tail. In most
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# cases this should be kept as low
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# as possible to not waste airtime.
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txtail = 10
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# Configure CDMA parameters. These
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# settings are reasonable defaults.
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persistence = 200
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slottime = 20
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# Whether to use KISS flow-control.
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# This is useful for modems with a
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# small internal packet buffer.
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flow_control = false |