you need to enable ip forwarding so you can connect networks together
You can do this by
echo "1" > /proc/sys/net/ipv4/ip_forward
You need to write a script to do it automatically at boot time.
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience, including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform.