Same IP Shared between multiple GTM LIsteners
Hi All, I hope this is a simple anwser because I don't believe this is setup correctly. We have two i2800 F5s running DNS and LTM feature sets. LTM portion works as expected with device-group and traffic-group, etc. The issue I believe is on the DNS (GTM) feature set. I've only ever seen this installed in a standalone fashion with two different IPs configured on each GTM respectively. The current setup I am working has two GTM listeners with the same IP running on two different boxes within the same VLAN... I've set this up in a lab setting to mimic it with some VEs and the behavior I see is as soon as the active unit reboots the ARP sticks on the local switch and connectivity is loss. So HA isn't working and I believe it is because this is architecture incorrectly using the same IP on both GTM units as their listeners. From some research I don't see a way to have a "floating" address shared between the two units. From what I can tell these units need different IPs for the listeners and HA would be handled up stream via DNS hierarchy?
Tech notes:
F5#1:
selfIP x.x.x.211
listeners x.x.x.15
F5#2
selfIP x.x.x.212
listerner x.x.x.15