Display public IP in DMZ

Question

Hi, 
 I'm a newbe. So thanks for your patience. 
 
 We are a school. We have an Internet connection with 5 public IPs (xx.xx.xx.202 to 206 - same gateway). We are using UTM 9 as our firewall. 
 Our main network gets DHCP from a Windows box (192.168.x.x). We have another network for the students. DHCP is provided by Sophos (10.10.x.x - 
 Presently, no matter where you are connected, it's only the main public IP that is display (202). We would like the Student network to display a different Public IP address (206) when they reach the Internet. Is this possible? 
 I have set up a new interface (eth2-WAN2) with the good IP address (206). I'm able to ping it from the outside so I know this part works. 
 How can I tell UTM DHCP Scope to get on the Internet with WAN2 interface (or at least display the WAN2 Public IP Address)? 
 
 Thanks for your help. It's appreciated. 
 
 Sebastien

apijnappels · Answer

The easiest solution is setting the additional IP's up as additional IP's under the main WAN connection. You can then use Interfaces & Routing -> Interfaces -> Multipath Rules to setup which interface (or WAN address) should be used for each different network. 
 I think this is also possibly with the setup using a second interface, but as said not absolutely necessary, you could use this interface for other (future) needs.

BAlfson · Answer

In addition to apijnappels' suggestion, you will want a masquerading rule for traffic from the student network. Also, see How to change the outgoing interface for Web Filtering . Rather than using the suggested method of enabling this capability, do the following as root: 
 cc set http enable_out_interface 1 
 Cheers - Bob

Display public IP in DMZ

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