Action 1: Prevent propagation of incorrect routing information
We set up filters where we only send the blocks that we are responsible for, otherwise they are denied.
Action 2: Prevent traffic with spoofed source IP addresses
In our firewall it is responsible for doing the vilification allowing only IPs that were delegated by us to access our infrastructure.
Action 3: Facilitate global operational communication and coordination
We use practices like BCP38 on your network to ensure that only packets originating on your network are routed to the internet.
Action 4: Facilitate validation of routing information on a global scale