RE: ftp ports other than 21

  • From: "Steve Moffat" <steve@xxxxxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 17 Jul 2002 01:27:46 +0100

http://www.isaserver.org/pages/articles.asp?art=2
 
Steve

        -----Original Message----- 
        From: Ahmad Jamal [mailto:abobader@xxxxxxxx] 
        Sent: Tue 16/07/2002 08:14 PM 
        To: [ISAserver.org Discussion List] 
        Cc: 
        Subject: [isalist] RE: ftp ports other than 21
        
        
        http://www.ISAserver.org
        
        

        Thanks Anthony for the help, but still same problems as before, it will 
die before listing the folder with same error.

         

        Also the Secondary Connection 1 & 2 did not work at all, any more 
suggestion for this issue, or at least add-on app/utilities/scripts to solve 
this?

         

        -----Original Message-----
        From: Anthony Dowling [mailto:antman147@xxxxxxxxxx] 
        Sent: Tuesday, July 16, 2002 4:32 PM
        To: [ISAserver.org Discussion List]
        Subject: [isalist] RE: ftp ports other than 21

         

        http://www.ISAserver.org

        This is what I did to achieve connections to FTP on ports other than 21 
using a Client behind an ISA Firewall.

         

        I created a Protocol Definition for the IP, with the primary connection 
set to the Port Number I needed, Protocol Type TCP, and direction outbound, 
then for secondary connections I create 2 listings, 1 each for inbound and 
outbound, on port range 1024-65535.  

         

        Example Protocol Definition to connect to an FTP on port 2323

         

        Protocol Definition Name â FTP â 2323

        Primary Connection Port Number = 2323

        Primary Connection Protocol = TCP

        Primary Connection Direction = Outbound

        Secondary Connection 1 Port Range = 1024 â 65535

        Secondary Connection 1 Protocol Type TCP

        Secondary Connection 1 Direction = Outbound

        Secondary Connection 2 Port Range = 1024 â 65535

        Secondary Connection 2 Protocol Type TCP

        Secondary Connection 2 Direction = Inbound

         

        Then simply adding this Protocol Definition to a Protocol Rule worked 
sweetly.

         

        After doing this, I was able to connect to the non standard FTP port, 
and use PASV mode for directory listings.  (I vaguely remember having issues 
with PORT mode)

         

        This only works if the Firewall Client is installed on the client 
machine.

         

                    

         

        -----Original Message-----
        From: Ahmad Jamal [mailto:abobader@xxxxxxxx]
        Sent: Tuesday, 16 July 2002 06:27
        To: [ISAserver.org Discussion List]
        Subject: [isalist] ftp ports other than 21

         

        http://www.ISAserver.org

        Any suggestion for this problems, I connect, but it can not go to the 
folder listing for the ftp server, it give âerror: time outâ.

         

        Hi all,

         

        When I try to connect to ftp server that have ports number other than 
21, I can not get to the folder list, it will die with âtime outâ error msg.

         

        I did protocol definition for tcp/outbound port number, then protocol 
rules for that ports, and try with and without PASV, same thing, any suggestion 
or recheck I must do, thanks.

         

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