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<div class="section" id="supported-interfaces">
<span id="interfaces-main"></span><h1>Supported Interfaces<a class="headerlink" href="#supported-interfaces" title="Permalink to this headline"></a></h1>
<p>Reticulum supports using many kinds of devices as networking interfaces, and
allows you to mix and match them in any way you choose. The number of distinct
network topologies you can create with Reticulum is more or less endless, but
common to them all is that you will need to define one or more <em>interfaces</em>
for Reticulum to use.</p>
<p>The following sections describe the interfaces currently available in Reticulum,
and gives example configurations for the respective interface types.</p>
<p>For a high-level overview of how networks can be formed over different interface
types, have a look at the <a class="reference internal" href="networks.html#networks-main"><span class="std std-ref">Building Networks</span></a> chapter of this
manual.</p>
<div class="section" id="auto-interface">
<span id="interfaces-auto"></span><h2>Auto Interface<a class="headerlink" href="#auto-interface" title="Permalink to this headline"></a></h2>
<p>The Auto Interface enables communication with other discoverable Reticulum
nodes over autoconfigured IPv6 and UDP. It does not need any functional IP
infrastructure like routers or DHCP servers, but will require at least some
sort of switching medium between peers (a wired switch, a hub, a WiFi access
point or similar), and that link-local IPv6 is enabled in your operating
system, which should be enabled by default in almost all OSes.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># This example demonstrates a TCP server interface.</span>
<span class="c1"># It will listen for incoming connections on the</span>
<span class="c1"># specified IP address and port number.</span>
<span class="p">[[</span><span class="n">Default</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">AutoInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># You can create multiple isolated Reticulum</span>
<span class="c1"># networks on the same physical LAN by</span>
<span class="c1"># specifying different Group IDs.</span>
<span class="n">group_id</span> <span class="o">=</span> <span class="n">reticulum</span>
<span class="c1"># You can also select specifically which</span>
<span class="c1"># kernel networking devices to use.</span>
<span class="n">devices</span> <span class="o">=</span> <span class="n">wlan0</span><span class="p">,</span><span class="n">eth1</span>
<span class="c1"># Or let AutoInterface use all suitable</span>
<span class="c1"># devices except for a list of ignored ones.</span>
<span class="n">ignored_devices</span> <span class="o">=</span> <span class="n">tun0</span><span class="p">,</span><span class="n">eth0</span>
</pre></div>
</div>
<p>If you are connected to the Internet with IPv6, and your provider will route
IPv6 multicast, you can potentially configure the Auto Interface to globally
autodiscover other Reticulum nodes within your selected Group ID. You can specify
the discovery scope by setting it to one of <code class="docutils literal notranslate"><span class="pre">link</span></code>, <code class="docutils literal notranslate"><span class="pre">admin</span></code>, <code class="docutils literal notranslate"><span class="pre">site</span></code>,
<code class="docutils literal notranslate"><span class="pre">organisation</span></code> or <code class="docutils literal notranslate"><span class="pre">global</span></code>.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">Default</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">AutoInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># Configure global discovery</span>
<span class="n">group_id</span> <span class="o">=</span> <span class="n">custom_network_name</span>
<span class="n">discovery_scope</span> <span class="o">=</span> <span class="k">global</span>
<span class="c1"># Other configuration options</span>
<span class="n">discovery_port</span> <span class="o">=</span> <span class="mi">48555</span>
<span class="n">data_port</span> <span class="o">=</span> <span class="mi">49555</span>
</pre></div>
</div>
</div>
<div class="section" id="i2p-interface">
<span id="interfaces-i2p"></span><h2>I2P Interface<a class="headerlink" href="#i2p-interface" title="Permalink to this headline"></a></h2>
<p>The I2P interface lets you connect Reticulum instances over the
<a class="reference external" href="https://i2pd.website">Invisible Internet Protocol</a>. This can be
especially useful in cases where you want to host a globally reachable
Reticulum instance, but do not have access to any public IP addresses,
have a frequently changing IP address, or have firewalls blocking
inbound traffic.</p>
<p>Using the I2P interface, you will get a globally reachable, portable
and persistent I2P address that your Reticulum instance can be reached
at.</p>
<p>To use the I2P interface, you must have an I2P router running
on your system. The easiest way to acheive this is to download and
install the <a class="reference external" href="https://github.com/PurpleI2P/i2pd/releases/latest">latest release</a>
of the <code class="docutils literal notranslate"><span class="pre">ì2pd</span></code> package. For more details about I2P, see the
<a class="reference external" href="https://geti2p.net/en/about/intro">geti2p.net website</a>.`</p>
<p>When an I2P router is running on your system, you can simply add
an I2P interface to reticulum:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">I2P</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">I2PInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="n">yes</span>
<span class="n">connectable</span> <span class="o">=</span> <span class="n">yes</span>
</pre></div>
</div>
<p>On the first start, Reticulum will generate a new I2P address for the
interface and start listening for inbound traffic on it. This can take
a while the first time, especially if your I2P router was also just
started, and is not yet well-connected to the I2P network. When ready,
you should see I2P base32 address printed to your log file. You can
also inspect the status of the interface using the <code class="docutils literal notranslate"><span class="pre">rnstatus</span></code> utility.</p>
<p>To connect to other Reticulum instances over I2P, just add a comma-separated
list of I2P base32 addresses to the <code class="docutils literal notranslate"><span class="pre">peers</span></code> option of the interface:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">I2P</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">I2PInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="n">yes</span>
<span class="n">connectable</span> <span class="o">=</span> <span class="n">yes</span>
<span class="n">peers</span> <span class="o">=</span> <span class="mi">5</span><span class="n">urvjicpzi7q3ybztsef4i5ow2aq4soktfj7zedz53s47r54jnqq</span><span class="o">.</span><span class="n">b32</span><span class="o">.</span><span class="n">i2p</span>
</pre></div>
</div>
<p>It can take anywhere from a few seconds to a few minutes to establish
I2P connections to the desired peers, so Reticulum handles the process
in the background, and will output relevant events to the log.</p>
<p><strong>Please Note!</strong> While the I2P interface is the simplest way to use
Reticulum over I2P, it is also possible to tunnel the TCP server and
client interfaces over I2P manually. This can be useful in situations
where more control is needed, but requires manual tunnel setup through
the I2P daemon configuration.</p>
<p>It is important to note that the two methods are <em>interchangably compatible</em>.
You can use the I2PInterface to connect to a TCPServerInterface that
was manually tunneled over I2P, for example. This offers a high degree
of flexibility in network setup, while retaining ease of use in simpler
use-cases.</p>
</div>
<div class="section" id="tcp-server-interface">
<span id="interfaces-tcps"></span><h2>TCP Server Interface<a class="headerlink" href="#tcp-server-interface" title="Permalink to this headline"></a></h2>
<p>The TCP Server interface is suitable for allowing other peers to connect over
the Internet or private IP networks. When a TCP server interface has been
configured, other Reticulum peers can connect to it with a TCP Client interface.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># This example demonstrates a TCP server interface.</span>
<span class="c1"># It will listen for incoming connections on the</span>
<span class="c1"># specified IP address and port number.</span>
<span class="p">[[</span><span class="n">TCP</span> <span class="n">Server</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">TCPServerInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># This configuration will listen on all IP</span>
<span class="c1"># interfaces on port 4242</span>
<span class="n">listen_ip</span> <span class="o">=</span> <span class="mf">0.0</span><span class="o">.</span><span class="mf">0.0</span>
<span class="n">listen_port</span> <span class="o">=</span> <span class="mi">4242</span>
<span class="c1"># Alternatively you can bind to a specific IP</span>
<span class="c1"># listen_ip = 10.0.0.88</span>
<span class="c1"># listen_port = 4242</span>
<span class="c1"># Or a specific network device</span>
<span class="c1"># device = eth0</span>
<span class="c1"># port = 4242</span>
</pre></div>
</div>
<p><strong>Please Note!</strong> The TCP interfaces support tunneling over I2P, but to do so reliably,
you must use the i2p_tunneled option:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">TCP</span> <span class="n">Server</span> <span class="n">on</span> <span class="n">I2P</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">TCPServerInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="n">yes</span>
<span class="n">listen_ip</span> <span class="o">=</span> <span class="mf">127.0</span><span class="o">.</span><span class="mf">0.1</span>
<span class="n">listen_port</span> <span class="o">=</span> <span class="mi">5001</span>
<span class="n">i2p_tunneled</span> <span class="o">=</span> <span class="n">yes</span>
</pre></div>
</div>
</div>
<div class="section" id="tcp-client-interface">
<span id="interfaces-tcpc"></span><h2>TCP Client Interface<a class="headerlink" href="#tcp-client-interface" title="Permalink to this headline"></a></h2>
<p>To connect to a TCP server interface, you would naturally use the TCP client
interface. Many TCP Client interfaces from different peers can connect to the
same TCP Server interface at the same time.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># Here&#39;s an example of a TCP Client interface. The</span>
<span class="c1"># target_host can either be an IP address or a hostname.</span>
<span class="p">[[</span><span class="n">TCP</span> <span class="n">Client</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">TCPClientInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">target_host</span> <span class="o">=</span> <span class="mf">127.0</span><span class="o">.</span><span class="mf">0.1</span>
<span class="n">target_port</span> <span class="o">=</span> <span class="mi">4242</span>
</pre></div>
</div>
<p>It is also possible to use this interface type to connect via other programs
or hardware devices that expose a KISS interface on a TCP port, for example
software-based soundmodems. To do this, use the <code class="docutils literal notranslate"><span class="pre">kiss_framing</span></code> option:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># Here&#39;s an example of a TCP Client interface that connects</span>
<span class="c1"># to a software TNC soundmodem on a KISS over TCP port.</span>
<span class="p">[[</span><span class="n">TCP</span> <span class="n">KISS</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">TCPClientInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">kiss_framing</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">target_host</span> <span class="o">=</span> <span class="mf">127.0</span><span class="o">.</span><span class="mf">0.1</span>
<span class="n">target_port</span> <span class="o">=</span> <span class="mi">8001</span>
</pre></div>
</div>
<p><strong>Caution!</strong> Only use the KISS framing option when connecting to external devices
and programs like soundmodems and similar over TCP. When using the
<code class="docutils literal notranslate"><span class="pre">TCPClientInterface</span></code> in conjunction with the <code class="docutils literal notranslate"><span class="pre">TCPServerInterface</span></code> you should
never enable <code class="docutils literal notranslate"><span class="pre">kiss_framing</span></code>, since this will disable internal reliability and
recovery mechanisms that greatly improves performance over unreliable and
intermittent TCP links.</p>
<p><strong>Please Note!</strong> The TCP interfaces support tunneling over I2P, but to do so reliably,
you must use the i2p_tunneled option:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">TCP</span> <span class="n">Client</span> <span class="n">over</span> <span class="n">I2P</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">TCPClientInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="n">yes</span>
<span class="n">target_host</span> <span class="o">=</span> <span class="mf">127.0</span><span class="o">.</span><span class="mf">0.1</span>
<span class="n">target_port</span> <span class="o">=</span> <span class="mi">5001</span>
<span class="n">i2p_tunneled</span> <span class="o">=</span> <span class="n">yes</span>
</pre></div>
</div>
</div>
<div class="section" id="udp-interface">
<span id="interfaces-udp"></span><h2>UDP Interface<a class="headerlink" href="#udp-interface" title="Permalink to this headline"></a></h2>
<p>A UDP interface can be useful for communicating over IP networks, both
private and the internet. It can also allow broadcast communication
over IP networks, so it can provide an easy way to enable connectivity
with all other peers on a local area network.</p>
<p><em>Please Note!</em> Using broadcast UDP traffic has performance implications,
especially on WiFi. If your goal is simply to enable easy communication
with all peers in your local ethernet broadcast domain, the
<a class="reference internal" href="#interfaces-auto"><span class="std std-ref">Auto Interface</span></a> performs better, and is just as
easy to use.</p>
<p>The below example is enabled by default on new Reticulum installations,
as it provides an easy way to get started and to test Reticulum on a
pre-existing LAN.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># This example enables communication with other</span>
<span class="c1"># local Reticulum peers over UDP.</span>
<span class="p">[[</span><span class="n">Default</span> <span class="n">UDP</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">UDPInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">listen_ip</span> <span class="o">=</span> <span class="mf">0.0</span><span class="o">.</span><span class="mf">0.0</span>
<span class="n">listen_port</span> <span class="o">=</span> <span class="mi">4242</span>
<span class="n">forward_ip</span> <span class="o">=</span> <span class="mf">255.255</span><span class="o">.</span><span class="mf">255.255</span>
<span class="n">forward_port</span> <span class="o">=</span> <span class="mi">4242</span>
<span class="c1"># The above configuration will allow communication</span>
<span class="c1"># within the local broadcast domains of all local</span>
<span class="c1"># IP interfaces.</span>
<span class="c1"># Instead of specifying listen_ip, listen_port,</span>
<span class="c1"># forward_ip and forward_port, you can also bind</span>
<span class="c1"># to a specific network device like below.</span>
<span class="c1"># device = eth0</span>
<span class="c1"># port = 4242</span>
<span class="c1"># Assuming the eth0 device has the address</span>
<span class="c1"># 10.55.0.72/24, the above configuration would</span>
<span class="c1"># be equivalent to the following manual setup.</span>
<span class="c1"># Note that we are both listening and forwarding to</span>
<span class="c1"># the broadcast address of the network segments.</span>
<span class="c1"># listen_ip = 10.55.0.255</span>
<span class="c1"># listen_port = 4242</span>
<span class="c1"># forward_ip = 10.55.0.255</span>
<span class="c1"># forward_port = 4242</span>
<span class="c1"># You can of course also communicate only with</span>
<span class="c1"># a single IP address</span>
<span class="c1"># listen_ip = 10.55.0.15</span>
<span class="c1"># listen_port = 4242</span>
<span class="c1"># forward_ip = 10.55.0.16</span>
<span class="c1"># forward_port = 4242</span>
</pre></div>
</div>
</div>
<div class="section" id="rnode-lora-interface">
<span id="interfaces-rnode"></span><h2>RNode LoRa Interface<a class="headerlink" href="#rnode-lora-interface" title="Permalink to this headline"></a></h2>
<p>To use Reticulum over LoRa, the <a class="reference external" href="https://unsigned.io/rnode/">RNode</a> interface
can be used, and offers full control over LoRa parameters.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># Here&#39;s an example of how to add a LoRa interface</span>
<span class="c1"># using the RNode LoRa transceiver.</span>
<span class="p">[[</span><span class="n">RNode</span> <span class="n">LoRa</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">RNodeInterface</span>
<span class="c1"># Enable interface if you want use it!</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># Serial port for the device</span>
<span class="n">port</span> <span class="o">=</span> <span class="o">/</span><span class="n">dev</span><span class="o">/</span><span class="n">ttyUSB0</span>
<span class="c1"># Set frequency to 867.2 MHz</span>
<span class="n">frequency</span> <span class="o">=</span> <span class="mi">867200000</span>
<span class="c1"># Set LoRa bandwidth to 125 KHz</span>
<span class="n">bandwidth</span> <span class="o">=</span> <span class="mi">125000</span>
<span class="c1"># Set TX power to 7 dBm (5 mW)</span>
<span class="n">txpower</span> <span class="o">=</span> <span class="mi">7</span>
<span class="c1"># Select spreading factor 8. Valid</span>
<span class="c1"># range is 7 through 12, with 7</span>
<span class="c1"># being the fastest and 12 having</span>
<span class="c1"># the longest range.</span>
<span class="n">spreadingfactor</span> <span class="o">=</span> <span class="mi">8</span>
<span class="c1"># Select coding rate 5. Valid range</span>
<span class="c1"># is 5 throough 8, with 5 being the</span>
<span class="c1"># fastest, and 8 the longest range.</span>
<span class="n">codingrate</span> <span class="o">=</span> <span class="mi">5</span>
<span class="c1"># You can configure the RNode to send</span>
<span class="c1"># out identification on the channel with</span>
<span class="c1"># a set interval by configuring the</span>
<span class="c1"># following two parameters.</span>
<span class="c1"># id_callsign = MYCALL-0</span>
<span class="c1"># id_interval = 600</span>
<span class="c1"># For certain homebrew RNode interfaces</span>
<span class="c1"># with low amounts of RAM, using packet</span>
<span class="c1"># flow control can be useful. By default</span>
<span class="c1"># it is disabled.</span>
<span class="n">flow_control</span> <span class="o">=</span> <span class="kc">False</span>
</pre></div>
</div>
</div>
<div class="section" id="serial-interface">
<span id="interfaces-serial"></span><h2>Serial Interface<a class="headerlink" href="#serial-interface" title="Permalink to this headline"></a></h2>
<p>Reticulum can be used over serial ports directly, or over any device with a
serial port, that will transparently pass data. Useful for communicating
directly over a wire-pair, or for using devices such as data radios and lasers.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">Serial</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">SerialInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># Serial port for the device</span>
<span class="n">port</span> <span class="o">=</span> <span class="o">/</span><span class="n">dev</span><span class="o">/</span><span class="n">ttyUSB0</span>
<span class="c1"># Set the serial baud-rate and other</span>
<span class="c1"># configuration parameters.</span>
<span class="n">speed</span> <span class="o">=</span> <span class="mi">115200</span>
<span class="n">databits</span> <span class="o">=</span> <span class="mi">8</span>
<span class="n">parity</span> <span class="o">=</span> <span class="n">none</span>
<span class="n">stopbits</span> <span class="o">=</span> <span class="mi">1</span>
</pre></div>
</div>
</div>
<div class="section" id="kiss-interface">
<span id="interfaces-kiss"></span><h2>KISS Interface<a class="headerlink" href="#kiss-interface" title="Permalink to this headline"></a></h2>
<p>With the KISS interface, you can use Reticulum over a variety of packet
radio modems and TNCs, including <a class="reference external" href="https://unsigned.io/openmodem/">OpenModem</a>.
KISS interfaces can also be configured to periodically send out beacons
for station identification purposes.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">Packet</span> <span class="n">Radio</span> <span class="n">KISS</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">KISSInterface</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># Serial port for the device</span>
<span class="n">port</span> <span class="o">=</span> <span class="o">/</span><span class="n">dev</span><span class="o">/</span><span class="n">ttyUSB1</span>
<span class="c1"># Set the serial baud-rate and other</span>
<span class="c1"># configuration parameters.</span>
<span class="n">speed</span> <span class="o">=</span> <span class="mi">115200</span>
<span class="n">databits</span> <span class="o">=</span> <span class="mi">8</span>
<span class="n">parity</span> <span class="o">=</span> <span class="n">none</span>
<span class="n">stopbits</span> <span class="o">=</span> <span class="mi">1</span>
<span class="c1"># Set the modem preamble.</span>
<span class="n">preamble</span> <span class="o">=</span> <span class="mi">150</span>
<span class="c1"># Set the modem TX tail.</span>
<span class="n">txtail</span> <span class="o">=</span> <span class="mi">10</span>
<span class="c1"># Configure CDMA parameters. These</span>
<span class="c1"># settings are reasonable defaults.</span>
<span class="n">persistence</span> <span class="o">=</span> <span class="mi">200</span>
<span class="n">slottime</span> <span class="o">=</span> <span class="mi">20</span>
<span class="c1"># You can configure the interface to send</span>
<span class="c1"># out identification on the channel with</span>
<span class="c1"># a set interval by configuring the</span>
<span class="c1"># following two parameters. The KISS</span>
<span class="c1"># interface will only ID if the set</span>
<span class="c1"># interval has elapsed since it&#39;s last</span>
<span class="c1"># actual transmission. The interval is</span>
<span class="c1"># configured in seconds.</span>
<span class="c1"># This option is commented out and not</span>
<span class="c1"># used by default.</span>
<span class="c1"># id_callsign = MYCALL-0</span>
<span class="c1"># id_interval = 600</span>
<span class="c1"># Whether to use KISS flow-control.</span>
<span class="c1"># This is useful for modems that have</span>
<span class="c1"># a small internal packet buffer, but</span>
<span class="c1"># support packet flow control instead.</span>
<span class="n">flow_control</span> <span class="o">=</span> <span class="n">false</span>
</pre></div>
</div>
</div>
<div class="section" id="ax-25-kiss-interface">
<span id="interfaces-ax25"></span><h2>AX.25 KISS Interface<a class="headerlink" href="#ax-25-kiss-interface" title="Permalink to this headline"></a></h2>
<p>If you’re using Reticulum on amateur radio spectrum, you might want to
use the AX.25 KISS interface. This way, Reticulum will automatically
encapsulate it’s traffic in AX.25 and also identify your stations
transmissions with your callsign and SSID.</p>
<p>Only do this if you really need to! Reticulum doesn’t need the AX.25
layer for anything, and it incurs extra overhead on every packet to
encapsulate in AX.25.</p>
<p>A more efficient way is to use the plain KISS interface with the
beaconing functionality described above.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[[</span><span class="n">Packet</span> <span class="n">Radio</span> <span class="n">AX</span><span class="o">.</span><span class="mi">25</span> <span class="n">KISS</span> <span class="n">Interface</span><span class="p">]]</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">AX25KISSInterface</span>
<span class="c1"># Set the station callsign and SSID</span>
<span class="n">callsign</span> <span class="o">=</span> <span class="n">NO1CLL</span>
<span class="n">ssid</span> <span class="o">=</span> <span class="mi">0</span>
<span class="c1"># Enable interface if you want use it!</span>
<span class="n">interface_enabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># Serial port for the device</span>
<span class="n">port</span> <span class="o">=</span> <span class="o">/</span><span class="n">dev</span><span class="o">/</span><span class="n">ttyUSB2</span>
<span class="c1"># Set the serial baud-rate and other</span>
<span class="c1"># configuration parameters.</span>
<span class="n">speed</span> <span class="o">=</span> <span class="mi">115200</span>
<span class="n">databits</span> <span class="o">=</span> <span class="mi">8</span>
<span class="n">parity</span> <span class="o">=</span> <span class="n">none</span>
<span class="n">stopbits</span> <span class="o">=</span> <span class="mi">1</span>
<span class="c1"># Set the modem preamble. A 150ms</span>
<span class="c1"># preamble should be a reasonable</span>
<span class="c1"># default, but may need to be</span>
<span class="c1"># increased for radios with slow-</span>
<span class="c1"># opening squelch and long TX/RX</span>
<span class="c1"># turnaround</span>
<span class="n">preamble</span> <span class="o">=</span> <span class="mi">150</span>
<span class="c1"># Set the modem TX tail. In most</span>
<span class="c1"># cases this should be kept as low</span>
<span class="c1"># as possible to not waste airtime.</span>
<span class="n">txtail</span> <span class="o">=</span> <span class="mi">10</span>
<span class="c1"># Configure CDMA parameters. These</span>
<span class="c1"># settings are reasonable defaults.</span>
<span class="n">persistence</span> <span class="o">=</span> <span class="mi">200</span>
<span class="n">slottime</span> <span class="o">=</span> <span class="mi">20</span>
<span class="c1"># Whether to use KISS flow-control.</span>
<span class="c1"># This is useful for modems with a</span>
<span class="c1"># small internal packet buffer.</span>
<span class="n">flow_control</span> <span class="o">=</span> <span class="n">false</span>
</pre></div>
</div>
</div>
<div class="section" id="common-interface-options">
<span id="interfaces-options"></span><h2>Common Interface Options<a class="headerlink" href="#common-interface-options" title="Permalink to this headline"></a></h2>
<p>A number of general options are available on most interfaces.
These can be used to control various aspects of interface behaviour.</p>
<p>The <code class="docutils literal notranslate"><span class="pre">enabled</span></code> option tells Reticulum whether or not
to bring up the interface. Defaults to <code class="docutils literal notranslate"><span class="pre">False</span></code>. For any
interface to be brought up, the <code class="docutils literal notranslate"><span class="pre">enabled</span></code> option
must be set to <code class="docutils literal notranslate"><span class="pre">True</span></code> or <code class="docutils literal notranslate"><span class="pre">Yes</span></code>.</p>
<p>The <code class="docutils literal notranslate"><span class="pre">outgoing</span></code> option sets whether an interface is allowed
to transmit. Defaults to <code class="docutils literal notranslate"><span class="pre">True</span></code>. If set to <code class="docutils literal notranslate"><span class="pre">False</span></code> or <code class="docutils literal notranslate"><span class="pre">No</span></code>
the interface will only receive data, and never transmit.</p>
<p>The <code class="docutils literal notranslate"><span class="pre">mode</span></code> option allows selecting the high-level behaviour
of the interface from a number of options.</p>
<blockquote>
<div><ul class="simple">
<li><p>The default value is <code class="docutils literal notranslate"><span class="pre">full</span></code>. In this mode, all discovery,
meshing and transport functionality is available.</p></li>
<li><p>In the <code class="docutils literal notranslate"><span class="pre">access_point</span></code> (or shorthand <code class="docutils literal notranslate"><span class="pre">ap</span></code>) mode, the
interface will operate as a network access point. In this
mode, announces will not be automatically broadcasted on
the interface, and paths to destinations on the interface
will have a much shorter expiry time. This mode is useful
for creating interfaces that are mostly quiet, unless when
someone is actually using them. An example of this could
be a radio interface serving a wide area, where users are
expected to connect momentarily, use the network, and then
disappear again.</p></li>
</ul>
</div></blockquote>
</div>
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<h3><a href="index.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Supported Interfaces</a><ul>
<li><a class="reference internal" href="#auto-interface">Auto Interface</a></li>
<li><a class="reference internal" href="#i2p-interface">I2P Interface</a></li>
<li><a class="reference internal" href="#tcp-server-interface">TCP Server Interface</a></li>
<li><a class="reference internal" href="#tcp-client-interface">TCP Client Interface</a></li>
<li><a class="reference internal" href="#udp-interface">UDP Interface</a></li>
<li><a class="reference internal" href="#rnode-lora-interface">RNode LoRa Interface</a></li>
<li><a class="reference internal" href="#serial-interface">Serial Interface</a></li>
<li><a class="reference internal" href="#kiss-interface">KISS Interface</a></li>
<li><a class="reference internal" href="#ax-25-kiss-interface">AX.25 KISS Interface</a></li>
<li><a class="reference internal" href="#common-interface-options">Common Interface Options</a></li>
</ul>
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