Re: AOL port blocking
Re: AOL port blocking
- Subject: Re: AOL port blocking
- From: Jim Matthews <email@hidden>
- Date: Wed, 25 Sep 2002 11:34:11 -0400
At 3:59 PM +0100 9/25/02, Quinn wrote:
At 10:43 -0400 25/9/02, Jim Matthews wrote:
I've had a flurry of reports in the last couple weeks from AOL
users who can't FTP unless they enable passive mode (PASV).
Are you sure you're getting the IP address for the PORT command in
the way described by TN1145?
I had that problem with Fetch 4.0 but 4.0.2 calls OTGetProtAddress on
the control connection endpoint, and works in all the other
multihoming situations I've seen. This problem seems to have come up
in the last couple weeks, and copies of Fetch that were working
aren't working now.
At 11:18 AM -0400 9/25/02, Mike Cohen wrote:
AOL users should probably be treated the same way as a user behind a
NAT firewall.
NAT firewalls should translate the PORT argument so that the data
connection can go through. Requiring that the user use PASV isn't a
reasonable option when a firewall at the server side may require that
the user not use PASV. I'm seeing more and more of these situations
where two devices or services each break half of the FTP protocol,
but both think it's okay because it doesn't occur to them that
someone else might break the other half.
--
Jim Matthews
Fetch Softworks
http://fetchsoftworks.com
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