#!/bin/bash

# Start
# Configure IP address for WLAN
sudo ifconfig wlan0 192.168.0.1
# Start DHCP/DNS server
sudo service dnsmasq restart
# Enable routing
sudo sysctl net.ipv4.ip_forward=1
# Enable NAT
sudo iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
# Run access point daemon
sudo hostapd /etc/hostapd/hostapd.conf

# Stop
# Disable NAT
sudo iptables -D POSTROUTING -t nat -o eth0 -j MASQUERADE
# Disable routing
sudo sysctl net.ipv4.ip_forward=0
# Disable DHCP/DNS server
sudo service dnsmasq stop