摘要：Abstract: In this publication, I have chosen an important field in Computer Networks which is DMVPN (Dynamic Multi VPN). Each institution that uses the Internet as a service, should use VPNs for secure communications. Our internal internet communications is always at risk, so we have to prevent and secure this gap in our communications. For that reason to prevent and to escape being a target or losing information and sensitive documents, I will present some of the main problems that are in the moment, using Private VPN and advantages of using Dynamic Multi VPN (DMVPN) in our private and public communications.
