knowing my F5's ip

hi.. i recently read this link text

as i was facing the opposite problem, a java client behind LTM needed to connect to another server outside F5 with a soap request containing that client's IP address (that was part of the application custom soap request) , naturally all automatic java methods here including opening a socket to that server and getting the local address always return the local ip of the machine which is not accessible to the outside world, but i was wondering is there anyway to obtain said ip with some soft of API , or anything that won't require me to hardcode it into a property file.