TayF5un
Oct 16, 2018Nimbostratus
Exchange with two ISP on F5 DNS
Hi Guys, I have LTM, GTM and two ISP lines ISP-A and ISP-B. If ISP-A goes down, mail traffic should failover the ISP-B. My Config;
ISP-A --> 1.1.1.1
ISP-B --> 2.2.2.2
Exchange Virtual Server --> 10.10.66.66
FW NAT --> 1.1.1.1 --> HTTP/HTTPS --> 10.10.66.66
GTM Record --> mail.test.com 1.1.1.1
internal DNS --> mail.test.com 10.10.66.66
I want to add second ISP for redundancy. what do i need for that?
My plan is that;
Creating second NAT which is; 2.2.2.2 --> HTTP/HTTPS --> 10.10.66.66
Creating Second A and MX record on GTM --> mail.test.com 2.2.2.2
How can I check ISP links whether they are up or down.