Exam F5CAB1 Topic 2 Question 47 Discussion

By default,management-plane trafficuses themanagement routing table, whiledata-plane trafficuses the TMM routing table.
Remote Syslog traffic ismanagement-planetrafficunlessa management route exists.
If noManagement Routematches the Syslog server's destination IP, the BIG-IP will instead:
* UseTMM routes, and
* Source the packets from aSelf IP
This is exactly what the administrator is observing.
To force Syslog traffic out the management port:
You must create aManagement Route, which is configured using:
tmsh create /sys management-route <name> gateway <ip> network <syslog subnet> This sends syslog traffic:
* Out of themanagement interface
* Using theManagement IPas the source
Thus,Option Bis correct.
Why the other options are incorrect:
A). Set the Management IP as the source address
* Source address selection is overridden by routing.
* Without a management route, traffic still goes out the data plane.
C). Create a new Self IP using a route domain
* Unnecessary and not related to management-plane routing.
* Syslog traffic should not rely on data-plane Self IPs.
D). Modify port lockdown on Self IP to allow UDP/514
* This would allow Syslog trafficintothe BIG-IP over a Self IP, not forceoutboundtraffic via management.