Simple Network Management Protocol (SNMP) Number Spaces

Last Updated
2016-05-03
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Registries Included Below

Security Models

Registration Procedure(s)
Standards Action
Reference
[RFC 3411]
Note
The SnmpSecurityModel TEXTUAL-CONVENTION values managed by IANA are in
the range from 0 to 255 inclusive, and are reserved for standards-
track Security Models.  If this range should in the future prove
insufficient, an enterprise number can be allocated to obtain an
additional 255 possible values.

There are several values of securityModel defined for use with SNMP or
reserved for use with supporting MIB objects.  They are as follows:
    
Available Formats

CSV
Value Description Reference
0 reserved for 'any' [RFC 3411]
1 reserved for SNMPv1 [RFC 3411]
2 reserved for SNMPv2c [RFC 3411]
3 User-Based Security Model (USM) [RFC 3411]
4 Transport Security Model (TSM) [RFC 5591]
5-255 Unassigned

Message Processing Models

Registration Procedure(s)
Standards Action
Reference
[RFC 3411]
Note
The SnmpMessageProcessingModel TEXTUAL-CONVENTION values managed by
IANA are in the range 0 to 255, inclusive.  Each value uniquely
identifies a standards-track Message Processing Model of the Message
Processing Subsystem within a SNMP Management Architecture.

Should this range prove insufficient in the future, an enterprise
number may be obtained for the standards committee to get an
additional 256 possible values.
    
Available Formats

CSV
Value Description Reference
0 reserved for SNMPv1 [RFC 3411]
1 reserved for SNMPv2c [RFC 3411]
2 reserved for SNMPv2u and SNMPv2* [RFC 3411]
3 reserved for SNMPv3 [RFC 3411]
4-255 Unassigned

SnmpEngineID Formats

Expert(s)
Unassigned
Reference
[RFC 3411][RFC 5343]
Available Formats

CSV
Range Registration Procedures Note
1-127 Specification Required
128-255 Enterprise-specific IANA does not assign
Format Description Reference
0 Reserved [RFC 3411]
1 IPv4 address [RFC 3411]
2 IPv6 address [RFC 3411]
3 MAC address [RFC 3411]
4 administratively assigned text [RFC 3411]
5 administratively assigned octets [RFC 3411]
6 local engine [RFC 5343]
7-127 Unassigned
128-255 Enterprise-specific [RFC 3411]

SnmpAuthProtocols

Registration Procedure(s)
Standards Action
Reference
[RFC 3411]
Note
IETF standard protocols for SNMPv3 authentication and privacy

The MIB module defined in [RFC 3411] defines this OBJECT-IDENTITY
as registration points.
    
Available Formats

CSV
Value Description Reference
0 Reserved [RFC 3411]
1 usmNoAuthProtocol - no authentication [RFC 3414]
2 usmHMACMD5AuthProtocol - HMAC-MD5-96 [RFC 3414]
3 usmHMACSHAAuthProtocol - HMAC-SHA-96 [RFC 3414]
4 usmHMAC128SHA224AuthProtocol [RFC 7860]
5 usmHMAC192SHA256AuthProtocol [RFC 7860]
6 usmHMAC256SHA384AuthProtocol [RFC 7860]
7 usmHMAC384SHA512AuthProtocol [RFC 7860]

SnmpPrivProtocols

Registration Procedure(s)
Standards Action
Reference
[RFC 3411]
Note
IETF standard protocols for SNMPv3 authentication and privacy

The MIB module defined in [RFC 3411] defines this OBJECT-IDENTITY
as registration points.
    
Available Formats

CSV
Value Description Reference
0 Reserved [RFC 3411]
1 usmNoPrivProtocol - no privacy [RFC 3414]
2 usmDESPrivProtocol - CBC-DES [RFC 3414]
3 Reserved
4 usmAesCfb128Protocol - AES-CFB-128 [RFC 3826]

SNMP Transport Domains

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC 2578][RFC 3417][RFC 5590]
Note
Each domain is assigned a MIB-defined OID under snmpDomains.
Available Formats

CSV
Prefix SnmpDomains Reference
udp snmpUDPDomain [RFC 3417][RFC 5590]
clns snmpCLNSDomain [RFC 3417][RFC 5590]
cons snmpCONSDomain [RFC 3417][RFC 5590]
ddp snmpDDPDomain [RFC 3417][RFC 5590]
ipx snmpIPXDomain [RFC 3417][RFC 5590]
prxy rfc1157Domain [RFC 3417][RFC 5590]
ssh snmpSSHDomain [RFC 5592]
tls snmpTLSTCPDomain [RFC 6353]
dtls snmpDTLSUDPDomain [RFC 6353]