MODULES-MIB :: fethPortLastSourceAddress

MIB Reference — IPNetwork Monitor · Updated October 02, 2026

All MIBs › MODULES-MIB › fethPortLastSourceAddress

fethPortLastSourceAddress

Module: MODULES-MIB

OID (symbolic): MODULES-MIB::fethPortLastSourceAddress

OID (numeric): 1.3.6.1.4.1.81.12.6.1.1.1.26

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: This object is the SourceAddress of the last readable frame (i.e., counted by fethPortReadableFrames) received by this port. If no frames have been received by this port since the agent began monitoring the port activity, the agent shall return a string of length zero. REFERENCE Reference IEEE Draft Std 802.3u/D4 Rptr Mgt, 30.4.3.1.18, aLastSourceAddress. Reference IETF 100Base-T Repeater MIB, rptr100AddrTrackLastSourceAddress.

What is fethPortLastSourceAddress?

A deprecated object holding the 6-byte MAC source address of the last valid (readable) frame this port received, returning a zero-length string if the agent hasn't seen any frames on the port yet; it served the same diagnostic purpose as ethPortLastSourceAddr but for fast-Ethernet ports before being superseded.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.81.12.6.1.1.1.26
snmpwalk -v2c -c public <target> MODULES-MIB::fethPortLastSourceAddress

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.81.12.6.1.1.1.26.1
snmpget -v2c -c public <target> MODULES-MIB::fethPortLastSourceAddress.1

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OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.81lannetGEN-MIB
1.3.6.1.4.1.81.12ethLANNET-MIB
Numeric OIDNameModule
1.3.6.1.4.1.81.12.6fethMODULES-MIB
1.3.6.1.4.1.81.12.6.1fethPortMODULES-MIB
1.3.6.1.4.1.81.12.6.1.1fethPortTableMODULES-MIB
1.3.6.1.4.1.81.12.6.1.1.1fethPortEntryMODULES-MIB
1.3.6.1.4.1.81.12.6.1.1.1.26fethPortLastSourceAddressMODULES-MIB