Raspberry PI 3: Wireless hotspot (from WiFi to WiFi instead of ethernet to WiFi)
Solution 1
Try to install isc-dhcp-server
sudo apt-get install isc-dhcp-server
To have a dhcp server on your interface you want to use as access point. You can see this and learn how to configure it:
https://help.ubuntu.com/community/isc-dhcp-server
Solution 2
This post has solution for your question. It configures Raspberry Pi with 1 Access Point and many wireless connections.
It explains which lines to edit in hostapd and dnsmasq.
Danny Pang V
Updated on June 28, 2022Comments
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Danny Pang V almost 2 years
I would like to turn my Raspberry PI 3 into something like WiFi signal amplifier, Wireless repeater/extender or WiFi hotspot which can amplify weak WiFi signal.
After doing some research, I found this tutorial, Click here.
I try to follow the answer provided adityap174:
- turn off network manager service as it interferes with virtual interfaces
- turn down wlan0 using ifconfig wlan0 down
- create access point interface and assign it a different mac and ip address
- turn on hostapd at this access interface
- use dnsmasq to assign the connecting clients at this interface, ip addresses and give the default gateway as the ip of the station interface to be created
- turn on dnsmasq at the access interface.
- create new interface assign it separate mac address and connect it to the network by assigning essid and using dhclient to obtain ip address.
- if necessary perform ip masquerading through iptables command
I creates the new interface and the AP appears perfectly, but I fail to obtain the IP address when I try to connect the AP.
Software I install: hostapd and dnsmasq
I use wlan0 as station and myAcc as AP.
My command:
sudo systemctl disable NetworkManager.service sudo ifconfig wlan0 down 192.168.27.1 up sudo iw phy phy0 interface add myAcc type __ap sudo ifconfig myAcc hw ether A4:17:FE:6E:00:53 sudo ifconfig myAcc 192.168.27.1 up sudo nano /etc/hostapd/hostapd.conf sudo service hostapd start sudo mv /etc/dnsmasq.conf /etc/dnsmasq.conf.orig sudo nano /etc/dnsmasq.conf sudo iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE sudo iptables -A FORWARD -i wlan0 -o myAcc -m state --state RELATED,ESTABLISHED -j ACCEPT sudo iptables -A FORWARD -i myAcc -o wlan0 -j ACCEPT sudo sh -c "iptables-save > /etc/iptables.ipv4.nat iptables-restore < /etc/iptables.ipv4.nat sudo service dnsmasq start
In hostapd.conf:
interface=myAcc driver=nl80211 ssid=AP001 hw_mode=g channel=6 wmm_enabled=1 ht_capab=[HT40][SHORT-GI-20][DSSS_CCK-40] macaddr_acl=0 auth_algs=1 ignore_broadcast_ssid=0 wpa=2 wpa_key_mgmt=WPA-PSK wpa_passphrase=12345678 rsn_pairwise=CCMP
In dnsmasq.conf:
interface=wlan0 bind-interfaces server=8.8.8.8 domain-needed bogus-priv dhcp-range=172.24.1.50,172.24.1.150,12h
In sysctl.conf, net.ipv4.ip_forward has set to 1
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not2qubit over 7 yearsOk, so given the guy above network, how would you configure it?