I am using a Citrix environment across approx 65 remote sites for 300+ users. We have 6 presentation servers, 2 web servers and a secure gateway.
At present we dont allow local drives to be mapped. The reason for this is to reduce the amount of bandwidth used by each session and to prevent users from saving docs to their local hard drives on company computers (obvious reasons for this, docs dont get backed up etc). The only drive that the user can see from a Citrix application is a central store on the same LAN as the Citrix boxes (which does get backed up).- they can also see this same location from their local desktop.
However, we have now published work folders and iNotes (Lotus Notes) via The Secure Gateway to allow users to connect from home and work on files / view emails etc. However, as local drive mapping is disabled the user doesn't have the ability to copy docs to their home pc or to attach and detach documents via iNotes to and from their home machine.
To cut a long story short, I need a Citrix logon policy that says "If you are using the Secure Gateway then enable local drive mapping, if the users is on the WAN (ie they have an IP starting with 192.168) disable local drive mapping"