User`s manual
Table Of Contents
- 1. Introduction
- 2. Getting Started
- Powering on the W406-LX
- Connecting the W406-LX to a PC
- Configuring the Ethernet Interface
- USB Port for Expansion
- SD Socket for Storage Expansion
- Setting Up the Wireless Module
- Configuring the SIM Card
- Entering the PIN Code
- Verifying the SIM Card Status
- Enabling or Disabling the PIN Code Authentication
- Changing the PIN Code
- Unlocking the SIM Card
- Connecting to the Internet
- Reconnecting to the Internet
- Disconnecting from the Internet
- Detecting an Internet Connection Error
- Sending and Reading an SMS Message
- Deleting an SMS Message
- Test Program—Developing Hello.c
- 3. Managing Embedded Linux
- 4. Managing Communications
- 5. Development Tool Chains
- 6. Programmer’s Guide
- 7. Software Lock
- A. System Commands
W406-LX User’s Manual Managing Communications
4-8
The W406-LX supports the following sub-modules. Be sure to use the module that matches your
application.
ip_queue ipt_REDIRECT ipt_ah iptable_filter
ip_tables ipt_REJECT ipt_ecn iptable_mangle
ipt_CLUSTERIP ipt_SAME ipt_iprange iptable_nat
ipt_ECN ipt_TOS ipt_owner iptable_raw
ipt_LOG ipt_TTL ipt_recent
ipt_MASQUERADE ipt_ULOG ipt_tos
ipt_NETMAP ipt_addrtype ipt_ttl
NOTE The W406-LX does NOT support IPv6 and ipchains.
The basic syntax to enable and load an IPTABLES module is as follows:
#lsmod
#modprobe ip_tables
Use the following command to load the modules (iptable_filter, iptable_mangle, iptable_nat):
#modprobe iptable_filter
Use lsmod to check if the ip_tables module has already been loaded in the W406-LX. Use
modprobe to insert and enable the module.
NOTE IPTABLES plays the role of packet filtering or NAT. Take care when setting up the IPTABLES
rules. If the rules are not correct, remote hosts that connect via a LAN or PPP may be denied
access. We recommend using the Serial Console to set up the IPTABLES.
Click on the following links for more information about iptables.
http://www.linuxguruz.com/iptables/
http://www.netfilter.org/documentation/
HOWTO//packet-filtering-HOWTO.html