Wireless Ad-Hoc Mobile Broadband Sharing in Ubuntu

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* CREATE A WIRELESS AD-HOC NETWORK TO SHARE *
* YOUR MOBILE BROADBAND INTERNET CONNECTION *
* IN UBUNTU				    *
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01.	Connect to your mobile broadband using
	NetworkManager (NM).
02.	Click on the NM icon and choose 'Create
	New Wireless Network'.
03.	Enter the desired details for the network
	and click 'Create'.
04.	Right-click on the NM icon and select
	'Edit Connections'.
05.	Go to the 'Wireless' tab and double-click
	on the created network.
06.	Head over to 'IPv4 Settings' tab.
	a.	Click 'Add' under 'Addresses'.
	b.	Fill:
			Address:	192.168.133.1
			Netmask:	255.255.255.0
			Gateway:	0.0.0.0 (or leave blank)
			DNS Server:	8.8.4.4,8.8.8.8
	c.	Click 'Save'.
	d.	Click 'Close'.
07.	Open Terminal and enter these four lines:
		sudo iptables -A FORWARD -i ppp0 -o wlan0 -s 192.168.133.1/24 -m conntrack --ctstate NEW -j ACCEPT
		sudo iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
		sudo iptables -A POSTROUTING -t nat -j MASQUERADE
		sudo echo 1 > /proc/sys/net/ipv4/ip_forward

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* SETTINGS FOR CLIENTS *
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Network Name (SSID):	YOURADHOCNETWORKNAME
IP Address:		192.168.133.[2-254]
Netmask:		255.255.255.0
Gateway:		192.168.133.1
DNS Servers:		8.8.4.4
			8.8.8.8