Re: FTP Through Firewall

[Adam McKee <amckee home com>]

Did you "insmod ip_masq_ftp" ?

	-Adam


On Mon, 19 Feb 2001, Tanner, Robby wrote:

> 	I am using IPCHAINS and IPMASQ to provide internet access to our
> LAN.  I am sure you've all seen THIS before.  The windows FTP clients are
> having a difficult time retrieving the folder listing.  I have the
> ip_masq_ftp loaded but I am still getting the following log messages:
>
> "
> Feb 19 11:13:36 weisktsv03 kernel: Packet log: forward DENY eth0 PROTO=6
> 204.112.40.137:2832 129.128.5.191:42041 L=44 S=0x10 I=16261 F=0x4000 T=127
> SYN (#26)
> Feb 19 11:13:39 weisktsv03 kernel: Packet log: forward DENY eth0 PROTO=6
> 204.112.40.137:2832 129.128.5.191:42041 L=44 S=0x10 I=18565 F=0x4000 T=127
> SYN (#26)
> Feb 19 11:18:28 weisktsv03 kernel: Packet log: forward DENY eth0 PROTO=6
> 204.112.40.137:2840 129.128.5.191:42090 L=44 S=0x10 I=6790 F=0x4000 T=127
> SYN (#26)
> Feb 19 11:18:31 weisktsv03 kernel: Packet log: forward DENY eth0 PROTO=6
> 204.112.40.137:2840 129.128.5.191:42090 L=44 S=0x10 I=7302 F=0x4000 T=127
> SYN (#26)
> Feb 19 11:31:00 weisktsv03 kernel: Packet log: forward DENY eth0 PROTO=6
> 204.112.40.137:2855 129.128.5.191:42102 L=44 S=0x10 I=56455 F=0x4000 T=127
> SYN (#26)
> Feb 19 11:31:03 weisktsv03 kernel: Packet log: forward DENY eth0 PROTO=6
> 204.112.40.137:2855 129.128.5.191:42102 L=44 S=0x10 I=56967 F=0x4000 T=127
> SYN (#26)  "
>
> My understanding so far is that the FTP server is trying to create an
> inbound connection to my LAN address which it should not be requesting.
> Clearly, the MASQing is not taking place, although it should be as far as I
> can tell.  The 204.112.*.* is my LAN address.
>
> How can I get FTP through my firewall?  Is the client simply misconfigured?
> I am using WS_FTP LE.
>
> Regards,
> Rob
>
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-- 
        -Adam