Network route forwarding

There is a ‘systctl’ option controlling weither a datagram can be sent or not (http://en.wikipedia.org/wiki/IP_forwarding). You have to enable it for LXC to work. Another thing will be to make it persist to further reboots.

Create /etc/sysctl.d/99_custom.conf

net.ipv4.ip_forward = 1

And reload it with:

sysctl --system

Then ensure that it is enabled with:

sysctl net.ipv4.ip_forward

You may want to continue with: