Public configured directly on SERVER LAN card

Hello Team,

 

Actually my router interface g0/1 have ip address - 213.x.x.x/28.

The router have a range of public IP (193.x.x.x.x/21) which ISP provided me.

 

Now on my Sophos XG, I have interface which will NAT those public IP and route it to the internet which working good.

 

The issue is that I have some servers which have public IP configured directly on the LAN card of the server (DMZ)

So to make it work, I'll have to configure another interface with IP (193.x.x.x.x/21)

But after that, I'm clueless, should I configure a policy routing ? Can you guys help me on that ?

 

Thanks