What authentication type is used by SNMPv2?

The correct answer is D. community strings. SNMPv1 and SNMPv2 (both v2c and v2) use community strings as their only form of authentication. A community string acts like a shared password transmitted in plaintext within SNMP messages. Because community strings are sent unencrypted over the network, they are easily intercept

Network Device Management

Question

What authentication type is used by SNMPv2?

Options

AHMAC-MD5
BHMAC-SHA
CCBC-DES
Dcommunity strings

How the community answered

(47 responses)

A
2% (1)
B
6% (3)
C
2% (1)
D
89% (42)

Explanation

SNMPv1 and SNMPv2 (both v2c and v2) use community strings as their only form of authentication. A community string acts like a shared password transmitted in plaintext within SNMP messages. Because community strings are sent unencrypted over the network, they are easily intercepted, which is a well-known security weakness of SNMPv1/v2. HMAC-MD5 (A) and HMAC-SHA (B) are cryptographic authentication methods introduced in SNMPv3. CBC-DES (C) is an encryption algorithm also used in SNMPv3. None of these cryptographic mechanisms are available in SNMPv2.

Topics

#SNMPv2#authentication#community strings

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