Integration Manual

TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R04 Advance Information System description
Page 49 of 141
1.15.4 IP modes of operation
IP modes of operation refer to the TOBY-L2 and MPCI-L2 series modules configuration related to the network IP
termination and network interfaces settings in general. IP modes of operation are the following:
 Bridge mode: In bridge mode the module acts as a cellular modem dongle connected to the host over
serial interface (USB). The IP termination of the network is placed on the host IP stack. The module is
configured as a bridge which means the network IP address is assigned to the host (host IP termination).
 Router mode: In router mode the module acts as a cellular modem router which means the IP termination
of the network is placed on the internal IP stack of the module (on-target IP termination). In particular, in
this configuration the application processor belongs to a private network and is not aware of the mobile
connectivity setup of the module.
For more details about IP modes of operation see the u-blox AT Commands Manual [3].
1.15.5 Dual stack IPv4/IPv6
TOBY-L2 and MPCI-L2 series support both Internet Protocol version 4 and Internet Protocol version 6 in parallel.
For more details about dual stack IPv4/IPv6 see the u-blox AT Commands Manual [3].
1.15.6 TCP/IP and UDP/IP
Embedded TCP/IP and UDP/IP stack as well as Direct Link mode are not supported by the TOBY-L2x0-00S
and MPCI-L2x0-00S product versions.
TOBY-L2 and MPCI-L2 series modules provide embedded TCP/IP and UDP/IP protocol stack: a PDP context can be
configured, established and handled via the data connection management packet switched data commands.
TOBY-L2 and MPCI-L2 series modules provide Direct Link mode to establish a transparent end-to-end
communication with an already connected TCP or UDP socket via serial interfaces (USB, UART). In Direct Link
mode, data sent to the serial interface from an external application processor is forwarded to the network and
vice-versa.
For more details about embedded TCP/IP and UDP/IP functionalities see the u-blox AT Commands Manual [3].
1.15.7 FTP and FTPS
Embedded FTP and FTPS services as well as Direct Link mode are not supported by the TOBY-L2x0-00S
and MPCI-L2x0-00S product versions.
TOBY-L2 and MPCI-L2 series provide embedded File Transfer Protocol (FTP) and Secure File Transfer Protocol
(FTPS, i.e. FTP with SSL encryption) services. Files are read and stored in the local file system of the module.
FTP files can also be transferred using FTP Direct Link:
 FTP download: data coming from the FTP server is forwarded to the host processor via USB / UART serial
interfaces (for FTP without Direct Link mode the data is always stored in the module’s Flash File System)
 FTP upload: data coming from the host processor via USB / UART serial interface is forwarded to the FTP
server (for FTP without Direct Link mode the data is read from the module’s Flash File System)
When Direct Link is used for a FTP file transfer, only the file content pass through USB / UART serial interface,
whereas all the FTP commands handling is managed internally by the FTP application.
For more details about embedded FTP and FTPS functionalities see u-blox AT Commands Manual [3].