I'm trying to forward all traffic from tun0 to eth0,below is my interfaces:
eth0 Link encap:Ethernet HWaddr 12:57:6e:6a:74:85
inet addr:172.31.32.133 Bcast:172.31.47.255 Mask:255.255.240.0
tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-
inet addr:192.168.77.1 P-t-P:192.168.77.2 Mask:255.255.255.255
The commands I used are:
sudo bash -c 'echo 1 > /proc/sys/net/ipv4/ip_forward'
sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sudo iptables -A FORWARD -i eth0 -o tun0 -m state --state RELATED,ESTABLISHED -j ACCEPT
sudo iptables -A FORWARD -i tun0 -o eth0 -j ACCEPT
I tried in two machines, but all failed, can't get any response from ping.
$ ping -I tun0 8.8.8.8
