Adding new certificate to existing bundled certificate

You can use a text editor to merge the certificates.

A. Export your current bundle certificate from BigIP in text format (Copy the contents to clipboard). Paste the contents to text-editor (i.e. Notepad). It should look something similar to this:

Your current certificate bundle

=====BEGIN CERTIFICATE=====
contents of 1st cert in bundle
=====END CERTIFICATE======
=====BEGIN CERTIFICATE=====
contents of 2nd cert in bundle
=====END CERTIFICATE======

B. Open your new certificate with text-editor (if not possible, convert to plain-text format first, i.e. PEM). Append the contents to your current certificate bundle.

=====BEGIN CERTIFICATE=====
contents of your new (3rd certificate)
=====END CERTIFICATE======

C. Merge into a final bundle

=====BEGIN CERTIFICATE=====
contents of 1st cert in bundle
=====END CERTIFICATE======
=====BEGIN CERTIFICATE=====
contents of 2nd cert in bundle
=====END CERTIFICATE======
=====BEGIN CERTIFICATE=====
contents of your new (3rd certificate)
=====END CERTIFICATE======

When done, copy the contents of final bundle, and import to BigIP. You can overwrite the existing file, or import with a new name.

Regards,