Multiple outgoing IP's with single WAN port

Question

Hi, 
 I have several web servers running behind a single Sophos UTM, with two interface: 
 - eth0 > external (x.x.x.7/26) with default GW (x.x.x.1) 
 > Additional addresses 
 > x.x.x.8/26 
 > x.x.x.9/26 
 > x.x.x.10/26 
 > etc 
 - eth1 > internal (10.0.0.2/24) 
 
 Using web server protection I was able to send each additional external address to the correct internal server. But when I access the internet from a web server, it always uses the default IP x.x.x.7. I manged the same with a DNAT rule from external to internal. Both work fine. 
 But how can I configure Sophos UTM to direct all outgoing traffic to the correct external ip? 
 EG: 
 10.0.0.8 >x.x.x.8 
 10.0.0.9 >x.x.x.9 
 10.0.0.10 >x.x.x.10 
 
 Regards, 
 Hugo

BAlfson · Answer

Hoi Hugo and welcome to the UTM Community! 
 With NAT rules, e.g., 
 SNAT : {10.0.0.8) -> Any -> Internet : from {x.x.x.8} 
 Cheers - Bob Note in #2 in Rulz that your DNAT makes your WAF setup ineffective.

BAlfson · Answer

You NAT rule is incorrect. 
 Not 
 Going to: External WAN address 
 But 
 Going to: Internet 
 Cheers - Bob