Simple Network Management Protocol (SNMP) Number Spaces
- Last Updated
- 2016-05-03
- Available Formats
-

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Registries Included Below
- Security Models
- Message Processing Models
- SnmpEngineID Formats
- SnmpAuthProtocols
- SnmpPrivProtocols
- SNMP Transport Domains
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
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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
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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
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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] |