check for compatible drivers as defined at http://w1.fi/hostapd/
lsmod | grep mac80211
what Wi-Fi standards is the device able to talk? (we are gonna use G anyhow, not sure other standards are supported)
lshw -c network | egrep 'product|802.11'
Slackware
slackpkg search hostapd dhcp
Debian/Ubuntu
apt install hostapd isc-dhcp-server
cp -pi /usr/share/doc/hostapd/examples/hostapd.conf /etc/hostapd/hostapd.conf.dist grep -vE '^[[:space:]]*#|^[[:space:]]*$' /etc/hostapd/hostapd.conf.dist > /etc/hostapd/hostapd.conf.dist.clean grep -vE '^[[:space:]]*#|^[[:space:]]*$' /etc/hostapd/hostapd.conf.dist > /etc/hostapd/hostapd.conf vi /etc/hostapd/hostapd.conf ... ssid=as7lab hw_mode=g channel=11 ... wpa=2 wpa_key_mgmt=WPA-PSK wpa_pairwise=CCMP wpa_passphrase=12345678 #driver=nl80211
tail -n0 -F /var/log/*
Slackware
/etc/rc.d/rc.hostapd stop /etc/rc.d/rc.hostapd start
Debian/Ubuntu
systemctl unmask hostapd systemctl start hostapd systemctl status hostapd
you can now set up the network for that purpose.
Set up an IP for that AP service
ifconfig wlan0 10.22.22.254/24 up
or at startup on Debian or Ubuntu w/o netplan
vi /etc/network/interfaces auto wlan0 iface wlan0 inet static address 10.22.22.254/24 dns-search as7lab.lan dns-nameservers x.x.x.x x.x.x.x #dns-nameservers 208.67.222.222 208.67.220.220
enable forwarding and proceed
sysctl -w net.ipv4.ip_forward=1
with iptables
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
with nftables
table ip nat { chain postrouting { type nat hook postrouting priority srcnat; ip saddr 10.22.22.0/24 oif ppp0 masquerade } }
# slackware mv -i /etc/dhcpd.conf /etc/dhcpd.conf.dist vi /etc/dhcpd.conf # debian/ubuntu mv -i /etc/dhcp/dhcpd.conf /etc/dhcp/dhcpd.conf.dist vi /etc/dhcp/dhcpd.conf #option domain-name "as7lab.lan"; option domain-search "as7lab.lan"; option domain-name-servers x.x.x.x, x.x.x.x; #option domain-name-servers 208.67.222.222, 208.67.220.220; default-lease-time 600; max-lease-time 7200; ddns-update-style none; authoritative; subnet 10.22.22.0 netmask 255.255.255.0 { range 10.22.22.100 10.22.22.199; option subnet-mask 255.255.255.0; option routers 10.22.22.254; }
Slackware
pkill dhcpd dhcpd -q wlan0
Debian/Ubuntu
vi /etc/default/isc-dhcp-server INTERFACESv4="wlan0" INTERFACESv6="" systemctl restart isc-dhcp-server systemctl stop isc-dhcp-server6 systemctl disable isc-dhcp-server6