Hello, I am wondering if there is any implemenation of the IPSec/IKE on the OSes for handheld, e.g. Palm OS, WinCE. what could possibly be the constraints? Futher I guess I have a suggestion to the email list manager, it would be good to automatically put a tag in the subject, such as [ipsec], so that I could easily sort the messages :) Thank you Qiang