Wireless Sensor Networks
Stargate Developer’s Guide
Page 16
Doc. # 7430-0317-13 Rev. B
Ad-Hoc Mode (Peer to Peer)
To enable ad-hoc mode, edit the /etc/pcmcia/wireless.opts file and include the following section:
# AmbiCom 802.11 Card
*,*,*,*)
INFO="AmbiCom"
ESSID="Id"
MODE="Ad-hoc"
CHANNEL="6"
RATE="11M"
KEY="1234-1234-12 open"
;;
Set the parameters according to your network settings. If encryption is not being used, comment out
the
Key
parameter using a # character at the start of the line.
The “*,*,*,*)” line matches a WiFi card plugged into PCMCIA slot 0, or CF slot 1 - this activates
the configuration.
Managed Mode (Access Point)
To enable managed mode make sure the wireless.opts file is as follows:
# AmbiCom 802.11 Card
*,*,*,*)
INFO="AmbiCom"
ESSID="Id"
MODE="Managed"
CHANNEL="6"
RATE="11M"
KEY="1234-1234-12 open"
;;
3.2.3
Sierra Wireless AirCard 555D PCMCIA Cellular Modem Card
To provide a low speed, long range remote access link to the Stargate you can purchase the Sierra
Wireless AirCard 555D PCMCIA Cellular Modem Card. This card is essentially a modem that
provides a PPP link across the Internet via the cellular network. In addition to purchasing the card
you need to purchase a data service plan –
Verizon Wireless
is the recommended cellular carrier.
When you purchase the plan from Verizon make sure you specify a fixed IP address when
connecting, this way you can easily locate and connect to the Stargate remotely.
Summary of Contents for Stargate
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