TN-MGMT-MIB :: tnIfSourceAddrLock

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsTN-MGMT-MIBtnIfSourceAddrLock

tnIfSourceAddrLock

Module: TN-MGMT-MIB

OID (symbolic): TN-MGMT-MIB::tnIfSourceAddrLock

OID (numeric): 1.3.6.1.4.1.868.2.5.3.1.4.3.1.1

Node type: OBJECT-TYPE

Type: TruthValue

Access: read-write

Description: The Source Address Lock when set to true(1) monitors for source MAC address change on this port. This feature is useful to detect if the device connected to this port has been changed and also for intrusion when unknown MAC address ingress this port.

What is tnIfSourceAddrLock?

This read-write boolean, when set to true, enables monitoring for a change in the source MAC address seen on this port. It helps detect both a legitimate device swap on the port and a potential intrusion attempt from an unexpected MAC address.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.868.2.5.3.1.4.3.1.1
snmpwalk -v2c -c public <target> TN-MGMT-MIB::tnIfSourceAddrLock

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.868.2.5.3.1.4.3.1.1.1
snmpget -v2c -c public <target> TN-MGMT-MIB::tnIfSourceAddrLock.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.868.2.5.3.1.4.3.1.1.1 s <value>

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> tnIfSourceAddrLock.1

Start monitoring Transition Networks media conversion/networking products, entire product line (device naming/uptime/reset status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the TN-MGMT-MIB::tnIfSourceAddrLock OID value, configure state conditions and alerts, and monitor any Transition Networks media conversion/networking products, entire product line (device naming/uptime/reset status) from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.868transitionTRANSITION-SMI
1.3.6.1.4.1.868.2productsTRANSITION-SMI
1.3.6.1.4.1.868.2.5tnProductsTRANSITION-SMI
Numeric OIDNameModule
1.3.6.1.4.1.868.2.5.3tnMgmtMIBTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1tnMgmtObjectsTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.4tnIfMACSecurityMgmtTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.4.3tnIfMACSecurityTableTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.4.3.1tnIfMACSecurityEntryTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.4.3.1.1tnIfSourceAddrLockTN-MGMT-MIB