openwrt-packages-dist/net/netopeer2/files/stock_config.xml

<netconf-server xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-server">
  <listen>
    <endpoint>
      <name>test_ssh_listen_endpt</name>
      <ssh>
        <address>::</address>
        <port>830</port>
        <host-keys>
          <host-key>
            <name>test_ssh_listen_key</name>
            <public-key>ssh_host_rsa_key</public-key>
          </host-key>
        </host-keys>
      </ssh>
    </endpoint>
  </listen>
</netconf-server>