Technical Documentation
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RADIUS-Based Mirroring Sequence of Events
Figure 1 shows the sequence of events that take place during RADIUS-based mirroring. The tables after the figure describe the events indicated by the numbers and letters in the figure. Table 1 describes the configuration process; Table 2 describes the flow of traffic during a mirroring operation that is initiated when the user logs in; and Table 3 describes the flow of traffic when mirroring a user who is already logged in.
Figure 1: RADIUS-Based Packet Mirroring
To create a RADIUS-based packet-mirroring environment, you must complete the processes listed in Table 1.
Table 1: Setting Up the RADIUS-Based Packet-Mirroring Environment
Process | Description |
|---|---|
A | The authorized individual requests packet mirroring of the user’s traffic and configures the analyzer device to receive mirrored traffic. |
B | The ISP administration configures VSAs in the user’s RADIUS record. |
C | The E Series router administrator configures RADIUS server information and the analyzer interface connection to the analyzer device. |
Table 2 indicates the sequence of steps for a packet mirroring operation that takes place when a user starts a new session.
Table 2: RADIUS-Based Mirroring During Session Start (User-Initiated)
Step | Description |
|---|---|
1 | A user logs in to an E Series router, requesting authentication by the RADIUS server. Attributes in the logon request are examined to determine whether any match a configured trigger. The first match starts the packet mirroring session for the user. |
2 |
|
3 | The router sends the user’s original traffic to its intended destination. |
4 | The router sends the mirrored traffic to analyzer device. |
5 | The analyzer device provides information for the requesting individual. |
Table 3 indicates the sequence of steps for a packet mirroring operation that is configured for a currently running session.
Table 3: RADIUS-Based Mirroring of Currently Running Session (RADIUS-Initiated)
Step | Description |
|---|---|
1 | A user logs in to the E Series router; no mirroring action is configured. |
2 |
|
3 | The router sends the user’s original traffic to its intended destination. |
4 | The router sends mirrored traffic to the analyzer device. |
5 | The analyzer device provides information for the requesting individual. |
