Forum Discussion
Franky-frank-reg7
Altocumulus
AltocumulusSMTP outbound F5 Design
Hello all, I've been unable to find a clear answer for SMTP outbound configuration with F5 Inline. Currently, I have SMTP and other Exchange services working inbound just fine. From the Internet, we...
CA_Valli
MVP
MVP
Franky-frank-reg7 wrote: If I create the IP forwarding VIP as you mentioned and change the gateway of the server to the forwarding VIP, youre saying I can SNAT the source of exchange servers to self IP on the DMZ?
Correct, except F5 self-ip (or better, floating IP if it's a cluster) on the intenal VLAN will still be the gateway -- not the forwarding vip. Setup will be pretty much like this:
I'm assuming you have configured routing on F5 so that O365 networks are routed through DMZ gateway: from your schema, does the PC/mobile External client not hit the DMZ when traffic is inbound??
[EDIT]: if you're happy with self-ip on the DMZ, snat automap will work too. If you need a specific IP you can configure a snatpool with said IP and it willbe used instead.