I have a small business server that is running exchange and OWA. I also have a sonicwall TZ210 firewall. The ports on the firewall required for Exchange and OWA are set to point to the main server. I am in the process of putting a second machine on the network that will server as a FTP server. I am going to use crushftp. This has a web interface that I can configure to make it easier for my clients to get and send files. The issue is that the web interface uses the same ports as the exchange and owa server. I have a second public ip, but am unsure how to configure that on the firewall and even if that will correct my issue.