In this MicroNugget, I explain Dynamic Multi-Point VPNs and discuss overlay GRE Tunnels, IPsec for protecting traffic, and the Dynamic Multi-point VPN solution.
As the network engineer for your company you are responsible for all network-related tasks. One day your security officer comes to you and asks is you can further enhance the network security. He wants you to implement an IOS Firewall feature to protect incoming traffic
One of the issues facing network and security engineers is defending the network against dynamic threats. This means traffic that cannot easily be identified by regular means, such as an application that changes layer 4 ports or tunnels within an existing protocol. Because of this, a solution is needed to match and filter based on specific information within the packet that is unique to the application you want to block.