Dear all, I have an urgent question on my work. I have 3 isa servers. One(A) is for global wan usage, two(B,C) for internet usage. Now, I need connect to my headquarters' ftp server, but my clients have to set B or C to b3 their proxy in order to go to internet and global wan in the meanwhile. I can set a routing rule for http request if they want to browse headquarters' websites in order to route this request from B and C to A. However, they have to connect to the headquarters' ftp server now, and I have also to route this request from B and C to A. How can I do it? I have try this function for a long time but failed. Please help me. By the way, I have also another project that my clients need to connect to headquarters' application servers and some web servers. In this case, headquarter wants my clients use a specific software which has to use some special port like 7210-7220. Moreover, when clients have downloaded this software to execute it, it will connect to one of the headquarters' website to get some information. So far, I can't set a successfully for this requirement. According to my test, clients can achieve this requirement by setting A to be their proxy. If they set B or C to be their proxy, they will get an error message which describe that they can't connect to the destination. All of my clients have installed firewall client and I have also set routing rules on B and C, but still failed. I need your help. Thank you very much. Best Regards Allen