VACM

E211677

SNMP security framework access control model

VACM (View-based Access Control Model) is a security framework defined in SNMP standards that controls access to management information based on user, group, and view configurations.

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All labels observed (3)

Label	Occurrences
SNMP-VIEW-BASED-ACM-MIB	3
VACM canonical	3
View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)	1

Statements (45)

Predicate	Object
instanceOf	SNMP security framework ⓘ access control model ⓘ
appliesTo	SNMP agents ⓘ SNMP managers ⓘ
basedOn	group configuration ⓘ user configuration ⓘ view configuration ⓘ
compatibleWith	USM ⓘ
configurationStoredIn	SNMP-VIEW-BASED-ACM-MIB tables ⓘ
controlsAccessTo	MIB objects ⓘ SNMP management information ⓘ
definedIn	SNMPv3 ⓘ
definedInRFC	RFC 3415 ⓘ
evaluates	access rights per PDU type ⓘ access rights per context ⓘ access rights per security level ⓘ access rights per security model ⓘ
fullName	Access Control Model ⓘ surface form: View-based Access Control Model
goal	allow role-based access to management information ⓘ restrict unauthorized access to SNMP MIB data ⓘ
hasComponent	VACM self-linksurface differs ⓘ surface form: SNMP-VIEW-BASED-ACM-MIB
maps	securityName to groupName ⓘ
partOf	SNMP security architecture ⓘ
provides	fine-grained access control to MIB subtrees ⓘ
separates	authentication from authorization ⓘ
specifiedBy	Internet Engineering Task Force ⓘ surface form: IETF
status	Internet Standard ⓘ
supports	notify access control ⓘ read access control ⓘ write access control ⓘ
tableIncludes	vacmAccessTable ⓘ vacmSecurityToGroupTable ⓘ vacmViewTreeFamilyTable ⓘ
usedWith	SNMP ⓘ SNMPv2c ⓘ SNMPv3 ⓘ
usesConcept	MIB view ⓘ access entry ⓘ context ⓘ groupName ⓘ securityName ⓘ view family ⓘ view mask ⓘ view subtree ⓘ
worksWith	User-based Security Model ⓘ

How these facts were elicited

The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.

Instruction

You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10.

# Requirements
- If you don't know the subject at all, return an empty list.
- If the subject is not a named entity, return an empty list.
- Include at least one triple where predicate is "instanceOf".
- Do not get too wordy.
- Separate several objects into multiple triples with one object.

Input

Subject: VACM
Description of subject: VACM (View-based Access Control Model) is a security framework defined in SNMP standards that controls access to management information based on user, group, and view configurations.

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

RFC 3415 → abbreviation → VACM ⓘ

VACM → hasComponent → VACM self-linksurface differs ⓘ

this entity surface form: SNMP-VIEW-BASED-ACM-MIB

RFC 2575 → title → VACM ⓘ

this entity surface form: View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)

RFC 2575 → abbreviation → VACM ⓘ

User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3) → compatibleWith → VACM ⓘ

subject surface form: User-based Security Model

SNMP-TARGET-MIB → relatedTo → VACM ⓘ

this entity surface form: SNMP-VIEW-BASED-ACM-MIB

SNMP-COMMUNITY-MIB → relatedTo → VACM ⓘ

this entity surface form: SNMP-VIEW-BASED-ACM-MIB