Unaple to access the application

Just a query, when you say through VIP its not working, i suppose your getting the Certificate page, (proceed to continue at your risk), if this is the case, do you have the VIP as the SAN name configured. This will not throw you the cert page.

URL means DNS name? if yes, then:

 

This means that your backend server is only configured to accept the domain name as Host Header, and not IP address. You need to review your backend server configuration.

 

-- URL means direct to application server? If yes then:

 

this means that your virtual server configuration or Routing configuration in your network is not correct for your environment. Potentially, enabling Source Address Translation (Automap) could help. Otherwise, more details about the failure including error messages seen would be needed. If you're uncomfortable with posting that on a public forum, I suggest you open a support case with F5.

 

If I understand well, You`ve applied a certificate to a virtual server: -with FQDN it is OK, not giving a cert error -with IP address it is giving a cert error

 

This is how it should be, the FQDN should match with the common name field in the certificate.

 

Solution: Provide the FQDN in the common name field, plus provide the IP address as a Subject Alternate Name (SAN). The con of this solution if in the future You change the IP address for the virtual, the cert error will came back.