802.11 bgn networks
Network basics
XBee Wi-Fi RF Module User Guide
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Parameter Function
EE0
Specifies no security. Security is not available in Ad Hoc mode.
CH
May be any channel from 1 to 0xB.
ID
Sets the SSID, which is any string of choice, as long as it is not the same as another
SSID in the vicinity.
MY
Sets the IP address of the creator node.
DL
Specifies the IP address of the joiner node.
MK
Sets the IP mask for both of the above addresses.
Set Ad Hoc joiner parameters
Set the following parameters for the joiner:
Parameter Function
AH0
Designates the node as an Ad Hoc joiner.
MA1
Specifies the static IP addresses. No DHCP is supported in Ad Hoc mode.
EE0
Specifies no security. Security is not available in Ad Hoc mode.
ID
Sets the SSID, which must match the ID of the creator. Problems arise if it matches the
SSID of an access point in the vicinity.
MY
Sets the IP address of the joiner node.
DL
Specifies the IP address of the creator node.
MK
Sets the IP mask for both of the above addresses.
Network basics
Clients need to join the wireless network before they can send data across it. This is called
association. In order for a device to associate it must know the following items about the desired
wireless network:
n
SSID: the name of the wireless network.
n
Encryption: if and how the network encrypts or scrambles its data.
n
Authentication: how and if the network requires its members to prove their identity.
n
Channel: what channel (frequency range) the wireless network uses.
Once a device is associated it can send and receive data from other associated devices on the same
network. When the client is done or needs to leave, it then can dis-associate and be removed from the
wireless network.
802.11 standards
The XBee Wi-Fi RF Module operates in three of the available 802.11 standards, they are:
802.11 b