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Sample – Wireless internet gateway
- V1.0.0 : Initial revision, pre build version
compiled for 2.37.4
Ethernet driver
as supplied with Internet library.
This
application is intended to show an AirLink FX
programmable modem, in conjunction with the Ethernet X-card, to operate as an
internet gateway allowing a PC to be plugged into it through its Ethernet port
and then surf the internet.
The Open AT code includes:
- a DHCP server to
automatically allocate IP address to the computers connected on the LAN.
- A web server that prompts an HTTP page to configure the APN and related
username and password.
Application operation:
When initially run the application does the
following
1.
Starts the Ethernet board up.
2.
Creates a DHCP server on the Ethernet connection.
3.
When an Ethernet client is connected it will detect
this and allocate it an address from 192.168.1.2 (the FXT has the address of
the default gateway 192.168.1.1).
4.
The APN to be used can be configured through the web
page hosted on the unit as shown below.
5.
Once configured the unit will create a PDP context to
the APN and act as a gateway for the connecting client.
Building the project
Please read the notes below about building the project
- The project needs to be built with the relevant Internet plugin for the
OS being compiled for.
- When creating the project make sure the ethernet dependency is selected.
Comments:
-
You may also choose to connect several laptops using
an Ethernet switch; the current sample supports up to 8, which can be easily
expanded by changing an option in WIP initialization. See chapter 7 in User
Guide.
-
Please note that the DHCP Server feature is in beta
stage now and should be officially available in OASiS 2.32 / R7.42. In the
meantime, you can use the attached beta version (B74u). This firmware is to be
used for demonstration purpose only.
-
This application is built with Open AT OS 6.31.0.00,
WIP 5.30.2010.
-
The source file of focus is “wireless_router_dhcps.c”.