This release includes support for Citrix MetaFrame services through WebVPN. The VPN Concentrator functions as the Citrix secure gateway. However, you configure your Citrix Web Interface software in "Normal Address" mode. You must install an SSL certificate on the VPN Concentrator interface that the clients connect to using a fully-qualified domain name (FQDN); this function does not work if you specify an IP address as the common name (CN) for the SSL certificate.
Configure Citrix MetaFrame support on the Configuration | User Management | Base Group/Group | WebVPN tab. Configure the SSL certificate on the Administration | Certificate Management screen.
The Citrix client attempts to use the FQDN to communicate with the VPN Concentrator. Your PC must be able to use DNS or an entry in the System32\drivers\etc\hosts file to resolve the FQDN.
http://www.cisco.com/en/US/products/hw/vpndevc/ps2284/prod_release_note09186a0080405b6c.html#wp499765
