Exam F5CAB1 Topic 2 Question 58 Discussion

Actual exam question for F5's F5CAB1 exam
Question #: 58
Topic #: 2
A new logging solution is being implemented on the network. Policy requires keeping management traffic sent from the BIG-IP out of the management interface. After configuring the BIG-IP to forward messages to the new Syslog server, the BIG-IP Administrator notices that packets are being sent from a numbered data-plane Self IP. What should the BIG-IP Administrator change to send the traffic out of the correct interface?

Suggested Answer: B Vote an answer

By default, management-plane traffic uses the management routing table, while data-plane traffic uses the TMM routing table.
Remote Syslog traffic is management-plane traffic unless a management route exists.
If no Management Route matches the Syslog server's destination IP, the BIG-IP will instead:
Use TMM routes, and
Source the packets from a Self IP
This is exactly what the administrator is observing.
To force Syslog traffic out the management port:
You must create a Management Route, which is configured using:
tmsh create /sys management-route <name> gateway <ip> network <syslog subnet> This sends syslog traffic:
Out of the management interface
Using the Management IP as the source
Thus, Option B is correct.

by Hugh at Jun 11, 2026, 06:00 AM

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