FIREBRICK-MIB :: fbL2tpTunnelsClosed

MIB Reference — IPNetwork Monitor · Updated September 21, 2026

All MIBs › FIREBRICK-MIB › fbL2tpTunnelsClosed

fbL2tpTunnelsClosed

Module: FIREBRICK-MIB

OID (symbolic): FIREBRICK-MIB::fbL2tpTunnelsClosed

OID (numeric): 1.3.6.1.4.1.24693.1701.1.5

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Number of tunnels in FREE state.

What is fbL2tpTunnelsClosed?

This counts how many L2TP tunnels have fully completed teardown into the CLOSED state; note that the source MIB's own description text for this object is a copy-paste of the wording used for fbL2tpTunnelsFree, but its name and its position as the sixth counter in the tunnel-state sequence (Free, Opening, Live, Closing, Failed, Closed) make clear it tracks closed tunnels. An admin tracks it together with fbL2tpTunnelsClosing to confirm tunnels are actually finishing shutdown rather than getting stuck mid-teardown. For example, this count rising in step with fbL2tpTunnelsClosing falling, after a batch of tunnels are torn down, confirms the tunnels closed cleanly.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.24693.1701.1.5
snmpwalk -v2c -c public <target> FIREBRICK-MIB::fbL2tpTunnelsClosed

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.24693.1701.1.5.1
snmpget -v2c -c public <target> FIREBRICK-MIB::fbL2tpTunnelsClosed.1

Start monitoring Firebrick multi-WAN router/VPN concentrator (unofficial Observium MIB) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the FIREBRICK-MIB::fbL2tpTunnelsClosed OID value, configure state conditions and alerts, and monitor any Firebrick multi-WAN router/VPN concentrator (unofficial Observium MIB) from a single console.

OID Breakdown

Upper-level ancestors (6 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
Numeric OIDNameModule
1.3.6.1.4.1.24693firebrickFIREBRICK-MIB
1.3.6.1.4.1.24693.1701fbL2tpObjectsFIREBRICK-MIB
1.3.6.1.4.1.24693.1701.1fbL2tpTunnelStatsFIREBRICK-MIB
1.3.6.1.4.1.24693.1701.1.5fbL2tpTunnelsClosedFIREBRICK-MIB