Hi,
If there is a better list for this question please point me to it.
I have Red Hat 8.0 with wu-ftp 2.6.2.8. The machine was originally
hooked up to a DSL line and a network everywhere (LinkSys?)
router, I updated the ftpaccess file to specify the passive ports
and IP Address. I also opened the port range in the router. All
was working great, until the DSL provider decided it was a good
idea to renew the ip address lease each week and
forcing an address change. So I moved the machine to a T1 line
behind a Netopia R5300 router. I modified the IP address in the
ftpaccess file and opened the ports in the netopia. However
passive mode just refuses to work. If I telnet to the T1 address
and use the FTP port and issue the PASV command, it just sits
there forever (I think it may eventualy come back with some kind
of 425 error).

(telnet 64.6.181.158 21)
230 User wbemuser logged in. Access restrictions apply.
TYPE I
200 Type set to I.
PASV

it just sits there after issueing the PASV command.

Now if I telnet to the internal ip addy on the FTP port, things
seem to
work better. I issue the PASV command and I get the 227 response. If I
then try to telnet to the ip and port specified in the 227 response I
get an error about port theft:

first telnet session (telnet 192.168.1.36 21):
230 User wbemuser logged in. Access restrictions apply.
TYPE I
200 Type set to I.
PASV
227 Entering Passive Mode (64,6,181,158,74,235)
NLST

In another telnet session I do:

telnet 64.6.181.158 19179

This connection is closed immediatly and in the first telnet
session I get

"425 Possible PASV port theft, cannot open data connection."

which I expect (and implies that I have the ports open in the
router correctly?).

What have I configured wrong?

In the router I have port 21 open as well as a range (19000-21000)
for the passive ports (specified in the ftpaccess file).

thank you
-Jim 

Jim Marshall
Manager
The Internet ConneXtion
http://www.iconnextion.com/ 




 
                   


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