Multi public subnet IPs and Routing Loops

[venhow]

hello,

now i using MoNowall, 1 WAN port connecting 1 fiber from ISP, and ISP give me 3 public subnet IPs.72.44.192.36/29 make MoNowall route IP, 72.44.192.48/28 and 74.206.101.16/28 make NAT.
Things happened, when 72.44.192.48/28 and 74.206.101.16/28 make 1:1 NAT is okay, but since make port NAT will cause Routing  Loops, like snap pictures.
Then I try to use pfSense, this will be okay?

[johnpoz]

So those network actually routed to you via a different transit?  Or the 2 routed via one of the others..

Or are you just hanging off same connection??  So in reality just running multiple layer 3 networks over the same layer 2??

[venhow]

my router IP is 72.44.192.36/29, ISP said 72.44.192.48/28 and 74.206.101.16/28 routing by 72.44.192.36, and 72.44.192.48 and 74.206.101.16 those usually is gateway can use by NAT.