CISCO-TAP2-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-TAP2-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2008-09-10

Category: Cisco Devices, VPN and Security

Description: Manages next-generation CALEA lawful intercept streams supporting multiple transport types on Cisco IOS platforms.

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What Is CISCO-TAP2-MIB?

CISCO-TAP2-MIB implements Cisco's next-generation lawful-intercept (CALEA) feature on Cisco IOS platforms, replacing the older CISCO-TAP-MIB, and provides a generic mediation-stream framework used across multiple intercept types (IP, 802 Ethernet, RADIUS user-connection) defined in companion extension MIBs. It exposes a mediation table describing where and how intercepted traffic content should be duplicated and forwarded - destination address/port, source interface, and transport parameters such as RTCP port and DSCP marking - along with notifications for intercept lifecycle events. Because lawful intercept is a security/compliance software feature rather than hardware telemetry, monitoring this MIB is about intercept-service software status - whether mediation streams are correctly configured and actively forwarding - and about notifications signaling stream state changes, rather than hardware health. Compliance teams configuring lawful intercept for the first time often consult a CISCO-TAP2-MIB MIB Browser to understand the mediation table's structure before provisioning live intercepts. It explicitly depends on companion extension MIBs (CISCO-IP-TAP-MIB, CISCO-802-TAP-MIB, CISCO-USER-CONNECTION-TAP-MIB) that supply intercept-type-specific filters on top of this common stream table. It is deployed on Cisco IOS routers/switches performing CALEA-compliant lawful intercept for service-provider or enterprise legal-compliance obligations.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-TAP2-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • Cisco ASR 1000 Series (e.g., ASR 1001-X/1002-HX) — current edge/aggregation router platform supporting CALEA lawful-intercept services

Monitoring Examples

An operator, in coordination with a mediation device, would create entries in cTap2MediationTable/cTap2MediationEntry via cTap2MediationNewIndex, configuring cTap2MediationDestAddressType/cTap2MediationDestAddress/cTap2MediationDestPort to point intercepted content at a mediation collector, with cTap2MediationSrcInterface identifying which interface's traffic is tapped. Fields like cTap2MediationRtcpPort, cTap2MediationDscp, cTap2MediationDataType, and cTap2MediationRetransmitType configure the delivery stream's transport behavior, while ciscoTap2MIBNotifs would signal changes in mediation-stream state that a compliance monitoring system needs to track.

What Can Be Monitored

  • mediation stream configuration status
  • intercept destination address/port
  • source interface being tapped
  • RTCP port and DSCP marking
  • data/retransmit type of intercept stream
  • mediation stream notifications
Imported Objects

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From IF-MIB

InterfaceIndexOrZero

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
RowStatus
StorageType
TEXTUAL-CONVENTION
TruthValue
OIDs

RFC description

Cisco Lawful Intercept (TAP2 - Traffic Analysis Points) management for lawful interception.

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Download CISCO-TAP2-MIB