Simple Network Management Protocol (SNMP) Number Spaces
2016-05-03
Security Models
Standards Action
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:
0
reserved for 'any'
1
reserved for SNMPv1
2
reserved for SNMPv2c
3
User-Based Security Model (USM)
4
Transport Security Model (TSM)
5-255
Unassigned
Message Processing Models
Standards Action
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.
0
reserved for SNMPv1
1
reserved for SNMPv2c
2
reserved for SNMPv2u and SNMPv2*
3
reserved for SNMPv3
4-255
Unassigned
SnmpEngineID Formats
Unassigned
1-127
Specification Required
128-255
Enterprise-specific
IANA does not assign
0
Reserved
1
IPv4 address
2
IPv6 address
3
MAC address
4
administratively assigned text
5
administratively assigned octets
6
local engine
7-127
Unassigned
128-255
Enterprise-specific
SnmpAuthProtocols
Standards Action
IETF standard protocols for SNMPv3 authentication and privacy
The MIB module defined in defines this OBJECT-IDENTITY
as registration points.
0
Reserved
1
usmNoAuthProtocol - no authentication
2
usmHMACMD5AuthProtocol - HMAC-MD5-96
3
usmHMACSHAAuthProtocol - HMAC-SHA-96
4
usmHMAC128SHA224AuthProtocol
5
usmHMAC192SHA256AuthProtocol
6
usmHMAC256SHA384AuthProtocol
7
usmHMAC384SHA512AuthProtocol
SnmpPrivProtocols
Standards Action
IETF standard protocols for SNMPv3 authentication and privacy
The MIB module defined in defines this OBJECT-IDENTITY
as registration points.
0
Reserved
1
usmNoPrivProtocol - no privacy
2
usmDESPrivProtocol - CBC-DES
3
Reserved
4
usmAesCfb128Protocol - AES-CFB-128
SNMP Transport Domains
Specification Required
Unassigned
Each domain is assigned a MIB-defined OID under snmpDomains.
udp
snmpUDPDomain
clns
snmpCLNSDomain
cons
snmpCONSDomain
ddp
snmpDDPDomain
ipx
snmpIPXDomain
prxy
rfc1157Domain
ssh
snmpSSHDomain
tls
snmpTLSTCPDomain
dtls
snmpDTLSUDPDomain