I set up FTP access for a customer using ISA Server and double NAT from two specific Internet IP addresses. One is My Company and the other is a franchise location.
From My Company, I can ftp across the Internet, dir, put and del files. From theother location, I can log in successfully, create a directory, change into that directory and run any other command, but I can NOT do an ls or dir. When I do, it simply says that the port command was successful and then nothing….it just sits there:
ftp> dir
200 PORT command successful.
150 Opening ASCII mode data connection for /bin/ls.
However, this same machine connects to another FTP server daily and drops off files. It also can connect to my personal FTP site and do a dir or ls withno problems.
