How to use FTP from SecureNAT client

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Question #827

I’m trying to use FTP from my SecureNAT client but it does not work! It works with the Web Proxy and Firewall clients, but not the SecureNAT clients. Why?

Answer

There is a bug that was not addressed in SP1 that causes PASV FTP requests from SecureNAT clients to fail when the following configurations are in place: 1. Multiple IP addresses are bound to the external interface 2. IP Routing is enabled on the ISA Server You can solve the problem by using the Web Proxy client or the Firewall client. At the time of this writing (July 4, 2002) there is no hotfix.

About The Author

Tom Shinder is a Program Manager at Microsoft and has two decades of networking and security experience. He has written dozens of books, thousands of articles, and spoken at large industry conferences on the topics of IT infrastructure, Cloud computing, and cybersecurity. In his free time, Tom enjoys participating in equine prediction markets.

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