Goal:<\/p>\n
The goal of this guide is to turn a Raspberry Pi into a wireless home\/mobile router.<\/p>\n
Equipment:<\/p>\n
Lets get started.<\/p>\n
Install the following packages.<\/p>\n
sudo apt-get install hostapd dnsmasq iptables<\/pre>\nOpen up “\/etc\/network\/interfaces” and add the following lines.\u00a0 If there is a line for wlan0 you can comment it out with a “#”.<\/p>\n
iface wlan0 inet static\r\naddress 192.168.42.17\r\nnetmask 255.255.255.0\r\n<\/pre>\nConfigure Hostapd<\/strong><\/p>\n
Edit the following file “\/etc\/default\/hostapd” so it looks like this.<\/em><\/p>\n
DAEMON_CONF=\"\/etc\/hostapd\/hostapd.conf\"<\/pre>\nNow edit the hostapd config file “\/etc\/hostapd\/hostapd.conf” and configure the wireless access point.<\/p>\n
interface=wlan0\r\ndriver=rtl871xdrv\r\nbridge=br0\r\nssid=MC\r\nchannel=1\r\nwmm_enabled=0\r\nwpa=1\r\nwpa_passphrase=min3cr@ft\r\nwpa_key_mgmt=WPA-PSK\r\nwpa_pairwise=TKIP\r\nrsn_pairwise=CCMP\r\nauth_algs=1\r\nmacaddr_acl=0 <\/code>\r\n<\/pre>\n\u00a0Configure the DHCP Server<\/strong><\/p>\n
For the DHCP server we just need to add the following lines to “\/etc\/dnsmasq.conf”<\/p>\n
interface=wlan0\r\ndhcp-range=192.168.42.20,192.168.42.152,255.255.255.0,12h\r\ndhcp-option=3,192.168.42.17\r\n<\/pre>\nConfigure Iptables<\/strong><\/p>\n
Now we need to set it up so the pi can forward traffic from wlan0 to eth0.<\/p>\n
Edit “\/etc\/sysctl.conf” and uncomment the following line<\/p>\n
net.ipv4.ip_forward=1<\/pre>\nthen execute<\/p>\n
sysctl -p<\/pre>\nNext create an iptables “config” file.<\/p>\n
sudo touch \/etc\/network\/if-up.d\/router.sh\r\nsudo chmod +x \/etc\/network\/if-up.d\/router.sh\r\nsudo su -c \"echo '\/etc\/network\/if-up.d\/router.sh' >> \/etc\/rc.local\"\r\n<\/pre>\nAdd the following line to the file.<\/p>\n
sudo iptables --table nat --append POSTROUTING --out-interface eth0 -j MASQUERADE\r\nsudo iptables --append FORWARD --in-interface wlan0 -j ACCEPT\r\n<\/pre>\nIf you are using the same wireless adapter that is used in this guide then you will need to execute the following commands to replace the hostapd binary.\u00a0 You can find more info here<\/a>.<\/p>\n
wget http:\/\/www.daveconroy.com\/wp3\/wp-content\/uploads\/2013\/07\/hostapd.zip\r\nunzip hostapd.zip\r\nsudo mv \/usr\/sbin\/hostapd \/usr\/sbin\/hostapd.bak\r\nsudo mv hostapd \/usr\/sbin\/hostapd.edimax\r\nsudo ln -sf \/usr\/sbin\/hostapd.edimax \/usr\/sbin\/hostapd\r\nsudo chown root.root \/usr\/sbin\/hostapd\r\nsudo chmod 755 \/usr\/sbin\/hostapd<\/pre>\nThat should do it. Plug in the Ethernet cable and reboot\u00a0 your pi and you should be good to go.<\/p>\n","protected":false},"excerpt":{"rendered":"
Goal: The goal of this guide is to turn a Raspberry Pi into a wireless home\/mobile router. Equipment: Raspberry Pi with raspbian Wireless USB device.\u00a0 The guide uses a Edimax Nano USB Wifi (EW-7811Un) adapter Ethernet cat5 cable to connect … Continue reading