How is this alt address used by the presentation server or by the client attempting to connect? Is it sometimes assigned to the web interface server versus the presentation server? Senarios? The admin guides says it is "the alternate address returned to clients that request it and is used to access a server that is behind a firewall". What does "returned to clients" mean, and why would you use an alt addr and where? Can't the firewall just do port or address translation and translate to the web i/f server directly to its non-alt address? Thanks.