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[DeleGate-En] Re: Delegate 9.9.5: how to give public IP in PASV response?
09 Nov 2009 23:57:31 GMT (Yutaka Sato)
The DeleGate Project


In message <_A4623@delegate-en.ML_> on 11/10/09(00:25:04)
you "HD Sorgenia | Andrea `Zuse' Balestrero" <> wrote:
 |[FTPS session, passive mode]
 |Command:	PASV
 |Response:	227 Entering Passive Mode (192,168,250,21,117,48).
 |Port 117*256+48 = 30000 is the correct port number, set by using
 |command SRCIF="*:30000-30050:ftp-data" .
 |But the IP address in PASV response is our Delegate private address,
 |behind static NAT.
 |We'd like to respond with the correct IP address (public, that is
 |the IP reachable from clients on the Internet).

Adding a SRCIF with "tcpbound" as follows will do mapping the address
of the port after it is bound.


 |In FTPS our firewall is unable to make any translation inside the
 |protocol (in packet payload).

If your client can use EPSV instead of PASV, it can do it.

  9 9   Yutaka Sato <>
 ( ~ )  National Institute of Advanced Industrial Science and Technology
_<   >_ 1-1-4 Umezono, Tsukuba, Ibaraki, 305-8568 Japan
Do the more with the less -- B. Fuller

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