RE: Trouble: FTP and ISA behind a load-balancer
- From: "Jim Harrison" <Jim@xxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 25 Jan 2006 19:13:54 -0800
Gee - this sounds familiar.
You wouldn't happen to have a case with PSS, would you?
Don't configure your FTP client to "simulate" the external IP.
-------------------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
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-----Original Message-----
From: Fernando Monteiro [mailto:fernandolistas@xxxxxxxxx]
Sent: Wednesday, January 25, 2006 19:09
To: [ISAserver.org Discussion List]
Subject: [isalist] Trouble: FTP and ISA behind a load-balancer
http://www.ISAserver.org
Hello,
I've an interesting question. My setup is:
2 cable modem connections (real IP)
|
|
Linksys RV042 load balancer
| 10.0.0.1
|
|
| 10.0.0.2
ISA Server 2004
| 192.168.10.1
|
|
| 192.168.10.10
FTP Server (DMZ host)
Everything seems to be working fine but FTP. When an external client tries to
connect to internal, published FTP server, there's something wrong when FTP
tries to open the second channel and return to FTP client the requested data.
FTP client shows me something like "opening PASV connection 10.0.0.2,6345". It
seems that ISA is sending its configured external address. Is this a webproxy
problem influencing the method that FTP server interprets addresses from
clients ?
The only client I could use to connect is CuteFTP, it recognizes 10.0.0.2 as
an internal address and it automatically "translate" it to the right IP, tha t
is used by the first connection.
Has someone have a solution for this problem ?
Thanks in advance,
Fernando Monteiro
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