All MIBs › ACC-L2TP › accL2tpUdpStatsUnknownTIDs
accL2tpUdpStatsUnknownTIDs
Module: ACC-L2TP
OID (symbolic): ACC-L2TP::accL2tpUdpStatsUnknownTIDs
OID (numeric): 1.3.6.1.4.1.5.1.1.71.2.1.1.7
Node type: OBJECT-TYPE
Type: Counter
Access: read-write
Description: Shows the number of packets received from unknown tunnels.
What is accL2tpUdpStatsUnknownTIDs?
Counts how many UDP packets arrived from tunnel IDs (TIDs) that do not exist in the system or were not recognized (read-only counter). Network engineers check this to detect spoofing attacks, orphaned tunnel endpoints, or configuration mismatches between tunnel peers. A sudden spike in this counter might indicate a misconfigured remote LAC or an active attack attempting to inject packets.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5.1.1.71.2.1.1.7 snmpwalk -v2c -c public <target> ACC-L2TP::accL2tpUdpStatsUnknownTIDs
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.5.1.1.71.2.1.1.7.1 snmpget -v2c -c public <target> ACC-L2TP::accL2tpUdpStatsUnknownTIDs.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.5.1.1.71.2.1.1.7.1 i <value>
Start monitoring ACC/Ericsson WAN access routers (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACC-L2TP::accL2tpUdpStatsUnknownTIDs OID value, configure state conditions and alerts, and monitor any ACC/Ericsson WAN access routers (legacy) from a single console.
OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.5 | acc | ACC-MIB |
| 1.3.6.1.4.1.5.1 | accSBAR | ACC-MIB |
| 1.3.6.1.4.1.5.1.1 | accBRG | ACC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.5.1.1.71 | accL2tp | ACC-L2TP |
| 1.3.6.1.4.1.5.1.1.71.2 | accL2tpTransport | ACC-L2TP |
| 1.3.6.1.4.1.5.1.1.71.2.1 | accL2tpTransportUdp | ACC-L2TP |
| 1.3.6.1.4.1.5.1.1.71.2.1.1 | accL2tpTransportUdpScalars | ACC-L2TP |
| 1.3.6.1.4.1.5.1.1.71.2.1.1.7 | accL2tpUdpStatsUnknownTIDs | ACC-L2TP |