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--- products:sbc:vim4:applications:wifi-sta-ap-mode [2022/07/13 05:40]
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+++ products:sbc:vim4:applications:wifi-sta-ap-mode [2025/05/15 06:30] (current)
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+====== VIM4 Wi-Fi STA/AP Mode Configuration ======
-====== VIM4 Wi-Fi STA/AP Mode ======
+===== Overview =====
+This guide explains how to configure dual Wi-Fi mode using the provided script (v1.0), enabling simultaneous operation in:
+STA+AP Mode: ''wlan0'' as STA (connects to existing Wi-Fi) + ''wlan1'' as AP (creates hotspot)
-{{page>products:sbc:common:applications:wifi-sta-ap-mode&noheader}}
+ETH+AP Mode: ''eth0'' as Ethernet uplink + ''wlan1'' as AP (//Note: Not available on Edge2 devices//)
+===== Prerequisites =====
+Root privileges required
+Ensure wireless interfaces are properly identified:
+STA interface: ''wlan0''
+AP interface: ''wlan1''
+Ethernet interface: ''eth0'' (not present on Edge2)
+===== Configuration Script Usage =====
+Run the script with root privileges:
+```
+sudo khadas_ap.sh
+```
+==== Main Menu Options ====
+```
+========================================
+ WiFi Configuration Tool v1.0
+========================================
+. STA+AP Mode
+. ETH+AP Mode
+. Stop All Services
+. Exit
+========================================
+Please select an option [1-4]:
+```
+.STA+AP Mode - Recommended for most devices: creates NAT forwarding between ''wlan0'' (STA) and ''wlan1'' (AP), requires existing Wi-Fi connection on ''wlan0'', hotspot IP: ''192.168.43.1'' (DHCP range: 192.168.43.2-254)
+.ETH+AP Mode - For devices with Ethernet port: creates NAT forwarding between ''eth0'' and ''wlan1''//Not functional on Edge2 devices// (no eth0 interface). Same hotspot IP range as STA+AP mode
+.Stop All Services - Terminates AP/DHCP/NAT services
+.Exit - Quit the script
+==== Configuration Steps ====
+Select operation mode from menu
+For AP modes (1 or 2):
+  * Enter SSID for hotspot
+  * Set password (WPA2-PSK required)
+  * Script automatically handles:
+  * Hostapd configuration
+  * Dnsmasq DHCP setup
+  * IP forwarding
+  * iptables NAT rules
+===== Verification =====
+Check interface status after configuration:
+```
+ifconfig wlan0 && ifconfig wlan1
+```
+Verify internet connectivity (STA+AP mode):
+```
+ping -I wlan0 google.com
+```
+Test hotspot access:
+SSID: [Your configured SSID]
+Password: [Your set password]
+Client IP range: 192.168.43.2-254
+===== Important Notes =====
+<WRAP important>
+Edge2 Device Limitations:
+No Ethernet interface (''eth0'')
+ETH+AP Mode (Option 2) will not function
+Use STA+AP Mode (Option 1) exclusively
+</WRAP>
+===== Technical Details =====
+IP Configuration:
+  * AP Static IP: 192.168.43.1/24
+  * DHCP Range: 192.168.43.2-254
+  * DNS: Google DNS (8.8.8.8) via port 5353
+Security:
+  * WPA2-PSK encryption
+  * CCMP/AES cipher mandatory
+Default channel: 6
+Dependencies:
+  * dnsmasq (DHCP server)
+  * hostapd (AP configuration)
+  * iptables (NAT forwarding)
+===== Troubleshooting =====
+AP Not Appearing:
+Confirm ''wlan1'' interface exists
+Check for conflicting services:
+```
+ps aux | grep -E 'hostapd|dnsmasq'
+```
+No Internet Access:
+Verify STA connection:
+```
+iwconfig wlan0
+```
+Check NAT rules:
+```
+iptables -t nat -L -n -v
+```
+DHCP Failures:
+Confirm dnsmasq running:
+```
+systemctl status dnsmasq
+```

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