How to configure your routers to protect

Now we have seen various types of attacks on routers, let’s look at the high-level security best practices that can be applied to the routers to protect against various levels of attacks:

• The Authentication, Authorization, Accounting (AAA) framework – The AAA framework provides a centralized approach that provides mechanisms for the authentication of the user’s management sessions. The AAA framework also provides a secure configuration to limit the number of commands that will be enabled by the administrators and will also help to log all the commands enabled by the users.
• A secure management plane configuration – As defined earlier, the management plane is responsible for monitoring and managing the device and network operations on which it is deployed. The management plane should be configured securely, as all the data from the control plane directly affects the operations of the management plant. The...