12.01.2011 01:06, Brett Glass пишет:
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.
Does FTP server enforces any limits for sessions per ip?
In past I saw that IE can open up to four concurrent sessions.
If plain text ftp clients works, IMHO it's not a NAT problem.
Also check config of ipfw is it supports both active and passive
FTP transfers.
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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--
Sincerely yours,
Artyom Viklenko.
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