TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R28
System description
Page 60 of 164
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. 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
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
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 “00” and
“60” 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
1.15.7
FTP
☞
Embedded FTP services as well as Direct Link mode are not supported by “00” and “60” product
versions.
TOBY-L2 and MPCI-L2 series provide embedded File Transfer Protocol (FTP) 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)
