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Power on two SDR boards. Call one board "adhoc1" and the other "adhoc2". On each board, the TX and RX antenna should vertical/orthogonal to each other as much as possible to gain a good TX/RX isolation.
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Connect a computer to the adhoc1 via Ethernet cable. The computer should have static IP 192.168.10.1. Open a terminal on the computer, and then in the terminal:
ssh root@192.168.10.122 (password: openwifi) service network-manager stop cd openwifi ./wgd.sh (Wait for the script completed) ifconfig sdr0 up ./sdr-ad-hoc-up.sh sdr0 44 192.168.13.1 (Above command setup ad-hoc network at channel 44 with static IP assigned to sdr0 NIC) iwconfig sdr0 -
You shold see output like:
sdr0 IEEE 802.11 ESSID:"sdr-ad-hoc" Mode:Ad-Hoc Frequency:5.22 GHz Cell: 92:CA:14:27:1E:B0 Tx-Power=20 dBm Retry short limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:offIf you see "Cell: Not-Associated", please wait and run "iwconfig sdr0" again until a randomly generated Cell ID appears.
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Connect another computer to the adhoc2 via Ethernet cable. The computer should have static IP 192.168.10.1. Open a terminal on the computer, and then in the terminal:
ssh root@192.168.10.122 (password: openwifi) service network-manager stop cd openwifi ./wgd.sh ifconfig sdr0 up ./sdr-ad-hoc-up.sh sdr0 44 192.168.13.1 iwconfig sdr0 -
You shold see output like:
sdr0 IEEE 802.11 ESSID:"sdr-ad-hoc" Mode:Ad-Hoc Frequency:5.22 GHz Cell: 92:CA:14:27:1E:B0 Tx-Power=20 dBm Retry short limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:offThe "Cell: 92:CA:14:27:1E:B0" should be the same as adhoc1, because the later joined node should discover the Cell ID of the existing network and join/get it automatically. If not, please adjust the antenna/distance and re-run the commands.
Now the communication link should be already setup between the two ad-hoc nodes, and you can ping each other.