Issue : NAT Loopback (hairpinning) | WAN Access routed mode
I am currently experiencing a problem that is quite blocking for me. I will present the context and the manifestation of the incident.
Context WAN :
--2 WANs access :
- WAN1 : ADSL PPOE --> IP Public know by fortinet
- WAN2 : 1 VDSL routed mode with the provider modem (No other choice with this provider) --> IP Public unknown by forti (Just Private subnet of routing, and 2 interfaces)
After i have been applied this process : https://cookbook.fortinet.com/using-hairpinning/
. The hairpinning works great for the
ADSL (IP Public on the interface WAN1). Issue : On the WAN2, the NAT loopback can't work because the forti can't map the interface with the real @IP_Public (my opinion)
Is there a way to tag the real @IP_Public on the WAN2 without changing interconnect mode (routed with modem) ?
Or an another process to bypass this issue and permit loopback on the 2 WANs ?
We have considered the solution using DNS cheating on the internal DNS, but may be a source of others problem..
Thanks you in advance for yor help,
Have a nice Day