IP Management Plane Security Techniques | Cisco Exam 400-251

IP Management Plane Security Techniques

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Which four techniques can you use for IP management plane security? (Choose four.)



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A. B. C. D. E. F.


The IP management plane is responsible for controlling and managing network devices, services, and applications. It is critical to secure the management plane to prevent unauthorized access or malicious attacks. The following are the techniques that can be used to ensure IP management plane security:

A. Management Plane Protection: It is a feature that provides control over traffic destined to the device management plane. Management Plane Protection (MPP) uses access control lists (ACLs) to filter traffic and protects the CPU from high-volume traffic attacks. This technique can be used to secure the management plane against common attacks, such as Distributed Denial of Service (DDoS) attacks.

B. uRPF: Unicast Reverse Path Forwarding (uRPF) is a technique that validates the reachability of the source IP address in a packet. This validation is done by checking the routing table for the interface that the packet arrived on and the expected interface for the source IP address. If the validation fails, the packet is discarded. uRPF helps to prevent spoofed IP addresses and protects the management plane against attacks that use spoofed IP addresses.

C. Strong Passwords: It is a best practice to use strong passwords for authentication to access the management plane. Strong passwords should be a combination of upper and lower-case letters, numbers, and symbols. Passwords should be changed regularly and not be easily guessable.

D. RBAC: Role-Based Access Control (RBAC) is a technique that limits access to the management plane based on the user's role. RBAC provides granular access control and helps to prevent unauthorized access to critical components of the management plane. Users are granted access only to the specific functions or resources required to perform their duties.

E. SNMP Security Measures: Simple Network Management Protocol (SNMP) is used to manage and monitor network devices. SNMP uses community strings for authentication, which can be easily compromised. SNMPv3 provides security features such as authentication, privacy, and access control, which can be used to secure the management plane.

F. MD5 Authentication: Message Digest 5 (MD5) is a cryptographic hash function used for authentication. MD5 authentication can be used to secure routing protocols such as OSPF and BGP. MD5 authentication ensures that routing information is received only from trusted sources and prevents routing information from being tampered with.

In summary, the techniques that can be used for IP management plane security are Management Plane Protection, uRPF, strong passwords, RBAC, SNMP security measures, and MD5 authentication. It is essential to implement a combination of these techniques to ensure the security of the management plane.