URL Syntax for Passthrough ftp?

tkevans@barkeep.es.dupont.com (Tim Evans)
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Date: Thu, 17 Feb 1994 11:23:40 --100
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From: tkevans@barkeep.es.dupont.com (Tim Evans)
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Subject: URL Syntax for Passthrough ftp?
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Is there a syntax for passthrough ftp?  That is, in our firewalled
network, we can use ftp via passthrough on the firewall machine 
by specifying a port number and username of the syntax 
"anonymous@remote.ftp.site"  Sequence is something like this:

ftp -n firewall:portnumber

ftp-prompt-fro-firewall>  user anonymous@remote.ftp.site

The outgoing connection is then set up and functions like a normal
ftp session.  Can such a connection be set up using an URL, and
what it its syntax?

Thanks

-- 
Tim Evans                     |    E.I. du Pont de Nemours & Co.
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