On Wed, May 27, 2009 at 5:42 PM, Alexandre Biancalana
<[email protected]> wrote:
> Hi list,
>
> I have two firewall with 7.2-STABLE, PF and Carp for failover.
>
> The machine have one physical interface dedicated to two internet
> links (from different providers) and using two vlans on top of this
> physical interface. Each vlan have one real ip address and a carp
> interface with multiple real ip addresses for each vlan. I have three
> ftp servers with invalid ip addresses behind the firewall that need to
> be accessible from internet.
>
> Then I configured ftp-proxy in the following way:
>
> ftp-proxy -a <internal_fw_ip> -b <ftp_external_ip> -p21 -R <ftp_internal_ip>
>
> When ftp_external_ip is an ip associated to the carp interface, the
> ftp connection is unstable, some times the connection is opened, some
> times the connection is broken in the middle of list command or before
> enter the password. If I start the ftp-proxy command using as
> ftp_external_ip the ip associated with the vlan interface everything
> works great.
>
> This machines are in production, so I'm building a lab with virtual
> machines to do some experiments and try to reproduce this.
>
> Did someone had seen something like this before ?

Sure have with pfSense many times.    You might want to give this
custom pftpx-route port a try that we have.  You can start an instance
of pftpx for each wan and then it will do the required route-to work.

http://www.pfsense.org/~sullrich/ported_software/pftpx_routeto/

Scott
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