Jetson Nano T100 WIFI热点设定及连接

设备: T100 (Jetson Nano+USB WIFI）
场景：eth0连接外网同时通过wlan0建立热点后转发至eth0 进行连接，ssh或vncview 连接T100

1.安装isc-dhcp-server 和 hostapd

sudo apt-get install isc-dhcp-server hostapd

2.配置DHCP

vim /etc/default/isc-dhcp-server  #添加如下一句
INTERFACES="wlan0"

vim /etc/dhcp/dhcpd.conf    #添加如下IP 10.5.5.x，IP根据需求自行填写
option domain-name-servers 8.8.8.8, 114.114.114.114;
default-lease-time 600;
max-lease-time 7200;

subnet 10.5.5.0 netmask 255.255.255.0 {
range 10.5.5.2 10.5.5.250;
option routers 10.5.5.1;
option broadcast-address 10.5.5.255;
}

ifconfig wlan0 10.5.5.1/24
service isc-dhcp-server restart

3. 打开数据包转发，通过iptables将WIFI的流量转发到本机联网的端口eth0（如果你用其他网卡改为对应设备如eth1等等）:

echo "1" > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

4.通过hostapd建热点

vim /etc/hostapd.conf  #路径根据需求进行设定，不限制
interface=wlan0
driver=nl80211
ssid=Hostapd_test   #SSID
channel=6
hw_mode=g
auth_algs=1
wpa=3
wpa_passphrase=12345678  #WIFI 密码
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP

hostapd  /etc/hostapd.conf 

5. 电脑尝试连接Hostapd_test的无线，密码12345678，连接成功后查看IP并通过SSH或VNCView 打开设备测试联网等功能。

如果遇到以下错误：
Configuration file: hostapd.conf
nl80211: Could not configure driver mode
nl80211 driver initialization failed.
hostapd_free_hapd_data: Interface wlan0 wasn't started

请执行如下命令后，再次运行hostapd  /etc/hostapd.conf 
nmcli nm wifi off
rfkill unblock wlan

image.png image.png

参考：
http://roylez.herokuapp.com/2011/08/11/hostapd.html?utm_source=tuicool&utm_medium=referral