Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Jim_Araujo's avatar
Jim_Araujo
Icon for Nimbostratus rankNimbostratus
Nov 04, 2020

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 tra...
application delivery
BIG-IP DNS
devops
PeteWhite's avatar
PeteWhite
Icon for Employee rankEmployee
Nov 09, 2020

You can have a DNS listener which is a floating IP address in the LTM sense, to provide HA failover of the listener. Or you can have standalone DNS listeners which are different IP addresses ( and the client will failover between them ), or you can have DNS Anycast where the DNS listener is the same and is redistributed into routing via different VLANs. Then use routing to push clients to the correct listener.

 

Seems like you may be having issues with the HA functionality - maybe look at MAC masquerading.