what is the use of floating IP and where does it use.

Hi vj,

 

it will be used as:

 

* next hop for a router in your environment or as default gateway for your real servers,

 

* as next hop to reach virtual IPs in a virtual address space on your BIG-IP,

 

* as SNAT in case you enable SNAT automap (make sure it belongs to the same traffic-group as the virtual servers you want to use it for).

 

In case there is none of the conditions above, you won´t need it, imho.

 

Please avoid to share the same IP for self IP and virtual IPs.

 

Thanks, Stephan