Proxying Citrix WinFrame? (fwd)

[elroy <elroy @ kcstar . com>]

Hi everybody -

I'm building a firewall using Linux and the FWTK, and need a way to proxy 
Citrix WinFrame. Does anyone know of a proxy available in source-code 
form for WinFrame?

I think I could use plug-gw, but plug-gw won't scale well in the event 
that I need to proxy to more than one WinFrame server.

I'm proxying WinFrame requests *inward* to an internal WinFrame server 
from a WAN, not from the Internet, btw.

Any help or pointers are greatly appreciated -

-elroy (elroy @
 kcstar .
 com)