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## Configuring CLI-Based Packet Mirroring

Packet mirroring enables you to send a copy of a packet to an external host for analysis. Packet mirroring has many uses, including traffic debugging and troubleshooting user networking problems.

This chapter contains the following sections:

- CLI-Based Packet Mirroring Overview
- Enabling and Securing CLI-Based Packet Mirroring
- Reloading a CLI-Based Packet-Mirroring Configuration
- Using TACACS+ and Vty Access Lists to Secure Packet Mirroring
- Using Vty Access Lists to Secure Packet Mirroring
- CLI-Based Packet Mirroring Sequence of Events
- Configuring CLI-Based Mirroring
- Configuring Triggers for CLI-Based Mirroring
- Configuring the Analyzer Device
- Configuring the E Series Router
- Example: Configuring CLI-Based Interface-Specific Mirroring
- Example: Configuring CLI-Based User-Specific Mirroring

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