SC-173
Implementing Lawful Intercept on Cisco IOS XR Software
How to Configure SNMP v3 Access for Lawful Intercept on the Router
Cisco IOS XR System Security Configuration Guide for the Cisco CRS-1 Router
OL-20382-01
Lawful Intercept Topology
The following illustration shows intercept access points and interfaces in a lawful intercept topology for
both voice and data interception (
Figure 1).
Figure 1 Lawful Intercept Topology for Both Voice and Data Interception
How to Configure SNMP v3 Access for Lawful Intercept on the
Router
Perform the following procedures in the order presented to configure Management Plane Protection
(MPP) and SNMP for the purpose of lawful intercept enablement:
• Disabling Lawful Intercept, page SC-173
• Configuring the Inband Management Plane Protection Feature, page SC-174 (Optional)
• Enabling the Mediation Device to Intercept VoIP and Data Sessions, page SC-174 (Required)
Disabling Lawful Intercept
LI is enabled by default on each supported router.
• To disable LI, enter the command lawful-intercept disable in global configuration mode.
• To reenable it, use the no form of this command.
Collection
Function
Law Enforcement
Agency (LEA)
270757
LI Administration
Function
Mediation
Device
Intercepting
Control Element
(ICE)
Configuration
Commands
Voice-Call Agent
Data-Radius, AAA
Cisco equipment
3rd-party equipment
Intercepting
Network Element
(INE)
Intercept
Related Info (IRI)
Communication
Content (CC)
IRI
Request
Request
Content
SNMPV3
Voice-edge router, trunk G/W
data-access/aggregation router
UDP Transport
for Delivery
Service Provider
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