Simple Network Management Protocol (SNMP) Number Spaces

Last Updated
2011-07-21
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Registries included below

Security Models

Registration Procedure(s)
Standards Action
Reference
[RFC3411]
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' [RFC3411]
1 reserved for SNMPv1 [RFC3411]
2 reserved for SNMPv2c [RFC3411]
3 User-Based Security Model (USM) [RFC3411]
4 Transport Security Model (TSM) [RFC5591]
5-255 Unassigned

Message Processing Models

Registration Procedure(s)
Standards Track
Reference
[RFC3411]
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 [RFC3411]
1 reserved for SNMPv2c [RFC3411]
2 reserved for SNMPv2u and SNMPv2* [RFC3411]
3 reserved for SNMPv3 [RFC3411]
4-255 Unassigned

SnmpEngineID Formats

Reference
[RFC3411][RFC5343]
Available Formats

CSV
Range Registration Procedures Note
1-127 Specification Required
128-255 Enterprise-specific IANA does not assign
Format Description Reference
0 Reserved [RFC3411]
1 IPv4 address [RFC3411]
2 IPv6 address [RFC3411]
3 MAC address [RFC3411]
4 administratively assigned text [RFC3411]
5 administratively assigned octets [RFC3411]
6 local engine [RFC5343]
7-127 Unassigned
128-255 Enterprise-specific [RFC3411]

SnmpAuthProtocols

Registration Procedure(s)
Standards Track
Reference
[RFC3411]
Note
IETF standard protocols for SNMPv3 authentication and privacy

The MIB module defined in [RFC3411] defines this OBJECT-IDENTITY
as registration points.
Available Formats

CSV
Value Description Reference
0 Reserved [RFC3411]
1 usmNoAuthProtocol - no authentication [RFC3414]
2 usmHMACMD5AuthProtocol - HMAC-MD5-96 [RFC3414]
3 usmHMACSHAAuthProtocol - HMAC-SHA-96 [RFC3414]

SnmpPrivProtocols

Registration Procedure(s)
Standards Track
Reference
[RFC3411]
Note
IETF standard protocols for SNMPv3 authentication and privacy

The MIB module defined in [RFC3411] defines this OBJECT-IDENTITY
as registration points.
Available Formats

CSV
Value Description Reference
0 Reserved [RFC3411]
1 usmNoPrivProtocol - no privacy [RFC3414]
2 usmDESPrivProtocol - CBC-DES [RFC3414]
3 Reserved
4 usmAesCfb128Protocol - AES-CFB-128 [RFC3826]

SNMP Transport Domains

Registration Procedure(s)
Specification Required
Reference
[RFC2578][RFC3417][RFC5590]
Note
Each domain is assigned a MIB-defined OID under snmpDomains.
Available Formats

CSV
Prefix SnmpDomains Reference
udp snmpUDPDomain [RFC3417][RFC5590]
clns snmpCLNSDomain [RFC3417][RFC5590]
cons snmpCONSDomain [RFC3417][RFC5590]
ddp snmpDDPDomain [RFC3417][RFC5590]
ipx snmpIPXDomain [RFC3417][RFC5590]
prxy rfc1157Domain [RFC3417][RFC5590]
ssh snmpSSHDomain [RFC5592]
tls snmpTLSTCPDomain [RFC6353]
dtls snmpDTLSUDPDomain [RFC6353]