HI all,

I am trying to share my laptop net connection with my android devices via wi-fi. The set-up used to work in Fedora 17. I am now trying the same on Fedora 18. I get an IP on the device, but am not able to browse on the device.

Can anyone suggest what is going wrong? Similar rules for libvirt are working to allow NAT in virtual machines.

Here is the script that tries to set-up stuff.

#!/bin/bash # # setup wlan0 with hostapd and firewall masquerade rules # to enable devices to use existing internet connection

# is wlan0 usable? # try to assign the interface an IP address # if we get an error message and error code, # prompt for wifi button press

echo "Trying to set up wlan0 interface ... " echo "+ sudo ifconfig wlan0 192.168.2.1 netmask 255.255.255.0 up " sudo ifconfig wlan0 192.168.2.1 netmask 255.255.255.0 up IFCFG_EXIT_CODE="$?"

if [ "IFCFG_EXIT_CODE" -ne 0 ] then echo "Please press the wifi button (F12) to activate the wireless lan interface and try again" 1>&2 exit 1 fi

# still here, then wlan0 has an IP address set then # our desired IP is on a "net" line of ip command output VERIFY_IP="$(ip addr show dev wlan0 | grep "net " | cut -c 10-20)"

if [ "$VERIFY_IP" != "192.168.2.1" ] then echo "Uh-oh! This script did a boo-boo while setting up IP address for wlan0!" 1>&2 exit 2 else echo "... done setting IP address on wlan0." fi

# Time to start hostap daemon echo "Trying to start HostAP Daemon ..." echo "+ sudo systemctl start hostapd.service" sudo systemctl start hostapd.service HOSTAPD_STATUS="$?"

if [ $HOSTAPD_STATUS -ne 0 ] then echo "Sorry! Could not start HostAP Daemon!" 1>&2 exit 3 else echo "... done starting HostAP daemon." fi

# Time to start dhcpd daemon echo "Trying to start dhcp daemon ..." echo "+ sudo systemctl start dhcpd.service" sudo systemctl start dhcpd.service

DHCPD_STATUS="$?"

if [ $DHCPD_STATUS -ne 0 ] then echo "Sorry! Could not start dhcpd Daemon!" 1>&2 exit 4 else echo "... done starting dhcpd daemon." fi

# Time to set up firewall rules echo "Setting up firewall to allow internet connection to our client devices..." # dhcp sudo iptables -I INPUT -i wlan0 -p tcp --dport 67 -j ACCEPT sudo iptables -I INPUT -i wlan0 -p udp --dport 67 -j ACCEPT # dns sudo iptables -I INPUT -i wlan0 -p tcp --dport 53 -j ACCEPT sudo iptables -I INPUT -i wlan0 -p udp --dport 53 -j ACCEPT # forwards sudo iptables -I FORWARD -i wlan0 -o wlan0 -j ACCEPT sudo iptables -I FORWARD -i wlan0 -s 192.168.2.0/24 -j ACCEPT sudo iptables -I FORWARD -o wlan0 -d 192.168.2.0/24 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT # nat sudo iptables -t nat -I POSTROUTING -s 192.168.2.0/24 ! -d 192.168.2.0/24 -j MASQUERADE

# some firewalld stuff sudo firewall-cmd --zone=public --add-interface=wlan0

Thanks,

Nandan