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Fortigate 80C adding secondary IP addresses to WAN1 interface

Just switched ISPs and had to reconfigure firewall - looks like we are most of the way there but I can't seem to add secondary IPs under the WAN1 network interface.

Public IP information provided by our ISP is as follows:

IP range 2xx.xxx.xx.58 - 62

Gateway 2xx.xxx.xx.49


My addressing mode is set to manual   with 2xx.xxx.xx.58/ set as the primary

When I try adding 2xx.xxx.xx.59 / then OK (or apply I've tried them both) the address does not appear in the secondary IP address list.

I'm probably missing something small but I'm stumped.....

1 Solution
The best way to accomplish this would be to create a VIP rule and specifiy the external IP as 2xx.xxx.xx.59 and the internal as either a one-to-one NAT or port forwarding. Then create an IP pool if you want to make sure that device uses that IP when it goes back out. I've attached two pictures, let me know if you need anything else. 2nd-IP PoolVIP-2ndIP.PNG
Lisaa_GAuthor Commented:
Let me give that a try - thank you
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