How to get the consumer IP address : EJB exposed as web service

Hi,

We have a ejb which is exposed as webservice in NW 7.3. We would like to know the ip of the caller who consumes the webservices. I cannot find any standard interfaces/class which can be accessed from ejb to read http headers.

Are there any methods available to read the http headers so that we can get the ip address of the consumer?

Thanks,

Sharadha