Date: Tue, 11 Jan 2011 16:06:14 -0700 (MST) From: Brett Glass <brett@lariat.net> To: net@freebsd.org Subject: IPFW firewall NAT and active FTP Message-ID: <201101112306.QAA29979@lariat.net>
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I'm working with a customer who has a FreeBSD 8.0 firewall, set up with firewall NAT in IPFW. It uses one-to-one static NAT to redirect FTP sessions originating on the outside to an FTP server on the inside. The FTP server is accessible via text-based FTP clients, but not via Web-based clients such as Mozilla Firefox or Internet Explorer. The internal FTP server is also a FreeBSD machine. He's wondering if the problem has to do with the lack of a "firewall punching" setting (which exists in natd but not in IPFW's built-in NAT). Can anyone suggest what might be causing the problem? --Brett Glass
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