Forum Discussion
wesleyjack
Apr 22, 2019Nimbostratus
Angel,
This is controlled by specifying the SNAT pool from the virtual servers properties page. Under Configuration > Basic, Source Address Translation and SNAT Pool are the last two options (at least in v13.x). If you select "automap" as the Source Address Translation then the F5 will use a self-IP. The "next-hop" would be determined by the available routes on the BIG-IP.
https://support.f5.com/csp/article/K7820
https://support.f5.com/csp/article/K7336
If you need a more specific answer, then please provide a more detailed diagram of the flow you are interested in.