mirror of
https://github.com/open-sdr/openwifi.git
synced 2024-12-22 23:12:49 +00:00
66 lines
2.9 KiB
Markdown
66 lines
2.9 KiB
Markdown
<!--
|
|
Author: Xianjun jiao
|
|
SPDX-FileCopyrightText: 2019 UGent
|
|
SPDX-License-Identifier: AGPL-3.0-or-later
|
|
-->
|
|
|
|
**NOTE** the terminal session mentioned in the following text can also be setup via USB-UART instead of Ethernet.
|
|
|
|
- Power on two SDR boards. Call one board "AP board" and the other "client board". 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.
|
|
- Connect a computer to the AP board 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)
|
|
cd openwifi
|
|
./fosdem.sh
|
|
(It will create a WiFi AP by hostapd program with config file: hostapd-openwifi.conf)
|
|
(Wait for the script completed)
|
|
cat /proc/interrupts
|
|
(Execute the "cat ..." command for several times)
|
|
(You should see the number of "sdr,tx_itrpt1" grows, because it sends the "openwifi" beacon periodically)
|
|
```
|
|
- Connect another computer to the client board 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
|
|
iwlist sdr0 scan
|
|
(The "openwifi" AP should be listed in the scanning results)
|
|
wpa_supplicant -i sdr0 -c wpa-openwifi.conf
|
|
```
|
|
If wpa-openwifi.conf is not on board, please create it with [this content](https://github.com/open-sdr/openwifi/blob/master/user_space/wpa-openwifi.conf).
|
|
- Now the client is trying to associate with the AP. You should see like:
|
|
```
|
|
root@analog:~/openwifi# wpa_supplicant -i sdr0 -c wpa-openwifi.conf
|
|
Successfully initialized wpa_supplicant
|
|
sdr0: CTRL-EVENT-SCAN-STARTED
|
|
sdr0: SME: Trying to authenticate with 66:55:44:33:22:8c (SSID='openwifi' freq=5220 MHz)
|
|
sdr0: Trying to associate with 66:55:44:33:22:8c (SSID='openwifi' freq=5220 MHz)
|
|
sdr0: Associated with 66:55:44:33:22:8c
|
|
sdr0: CTRL-EVENT-CONNECTED - Connection to 66:55:44:33:22:8c completed [id=0 id_str=]
|
|
```
|
|
The AP board terminal should print like:
|
|
```
|
|
...
|
|
sdr0: STA 66:55:44:33:22:4c IEEE 802.11: authenticated
|
|
sdr0: STA 66:55:44:33:22:4c IEEE 802.11: associated (aid 1)
|
|
sdr0: AP-STA-CONNECTED 66:55:44:33:22:4c
|
|
sdr0: STA 66:55:44:33:22:4c RADIUS: starting accounting session 613E16DE-00000000
|
|
```
|
|
If not, please adjust antenna/distance and re-run the commands on the client side.
|
|
|
|
- After association is done, in another terminal of client (**DO NOT** terminate wpa_supplicant in the original client terminal!):
|
|
```
|
|
dhclient sdr0
|
|
(Wait for it completed)
|
|
ifconfig sdr0
|
|
(Now you should see the IP address like 192.168.13.x allocated by AP)
|
|
ping 192.168.13.1
|
|
(Ping the AP)
|
|
```
|
|
Now the communication link should be already setup between the AP and the client.
|