SNMP has evolved over time into the SNMPv2 and then lastly with the SNMPv3. SNMP

Question

SNMP has evolved over time into the SNMPv2 and then lastly with the SNMPv3. SNMP provided a minimal but powerful set of facilities for monitoring and control of network elements using a straightforward Structure of Management Information (SMI), MIB, and protocol. But as there are more requirements for monitoring and as networks became more complex, new versions of the SNMP are released.

Compare and contrast the three versions of SNMP, explaining the deficiencies which the preceding version had, which paved the way for the newer version to be created.

Explain in detail two or more strengths of each new version and what it has been brought to today's marketplace.

Discuss in detail two or more advances of SNMPv3 in its security engine and any new MIBs.

Explanation / Answer

Q1) Compare and contrast the three versions of SNMP, explaining the deficiencies which the preceding version had, which paved the way for the newer version to be created

Explain in detail two or more strengths of each new version and what it has been brought to today's marketplace.

SNMP version 1:-

SNMP version 2 :-

SNMP version 3

Q3) Discuss in detail two or more advances of SNMPv3 in its security engine and any new MIBs.

2. Modification of Information - Thwarts accidental or intentional alterations of in-transit messages by checking the integrity of the data, including a time stamp.

3. Unauthorized Access - Verifies operator authorization and protects critical data from intentional and/or accidental corruption by using an access control table (part of policy-based management).

Please let me know in case of any clarifications required. Thanks!

Content SNMPv1 SNMPv2 SNMPv3 Version SNMPv1 was the first version of SNMP SNMPv2 currently exists in at least three flavors, SNMPv2c, SNMPv2u, and SNMPv2 SNMPv3 is the newest version of SNMP. protocol operations Simple request/ response protocol. Protocol operations :Get, GetNext, Set, and Trap Similarity: Get, GetNext, Set Changes: Trap message format New protocol operations GetBulk and Inform SNMPv3 uses SNMPv2 protocol operations and its PDU message format Security No security from someone with access to the network SNMPv2 failed to improve on security Its primary feature is enhanced security. Complexity Performance and security limitations. More powerful but more complex than SNMPv1 SNMPv3 focuses on improving the security aspect Encrypted traffic, Detection of malformed packets No Yes Yes Susceptible to brute- force attacks, Susceptible to buffer-overflow attacks Yes Yes No Susceptible to injection attacks Yes No No Susceptible to sniffing of session keys Yes No No

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