Routing traffic from Internal to DMZ

[Ananth]

Hi,

We have 2 ISP lines WAN1 and WAN2, internal clients are connected to Firewall over Internal Interface.

Our initial setup. 

We had an ftp server placed at ISP's Operation Center and this ftp server was given an IP 10.10.252.110. The secondary ip of WAN2 interface settings was give the IP 10.10.252.111. External client access this FTP server using one of our Public IPs. 

Required Setup

Now we got a new fiber line connecting the same ftp server to our DMZ interface ( so that we are not restricted by bandwidth limitations). We configured DMZ zone IP as 10.10.252.111 and set a policy for Internal users to access the FTP server, 10.10.252.110. But we are not getting any connectivity. When we revert back to original setup, everything is fine. ISP has confirmed that the new fiber line is connected to the same switch a their end.

A policy route was also set, but that too didn't help.

Please advise.

Thanks

Ananth