View Full Version : [ubuntu] Internet forwarding from wlan0 to eth0 with Karmic.
December 27th, 2009, 11:07 AM
I am using Ubuntu Karmic and I'd like to forward the Internet from the Wireless-Lan-Stick (wlan0) to the Ethernet-Adapter (eth0).
How can I achieve this?
December 27th, 2009, 02:47 PM
To route ip (forward) via two interfaces you have to enable the kernel option
sysctl -w net.ipv4.conf.all.forwarding=1
To use the internet from one interface and NAT the private network (10.x.y.z or 172.16.x.y or 192.168.x.y) you have to enable masquerading.
iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
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