Hello All, Sorry if this was already answered. I'm having a weird issue
with a Site to Site VPN where the Fortigate is sitting behind a double
NAT (Carrier Grade NAT from the Provider + NAT from an LTE Modem). The
setup line diagram looks something l...
It made no difference with IKE v2. What I've noticed is when I do a
packet debug on the HO device I see the ICMP test traffic hitting the HO
LAN through the VPN however the reply never makes it to the site. So if
I packet debug at the remote site I n...
ok. so the upgrade did not help. However the issue still persist. I have
a feeling that something in between the HO Fortigate and the site
Fortigate is changing the ports. I've also read a bit more about RFC
3947 and there is no mention of 4501. So I...
Thanks for the suggestion. I will take a look at them and provide the
feedback shortly. I'm just going through the upgrade of the OS now to
make sure it's not a bug in the firmware. I was on 6.0.6 before and I am
going to the latest build of 6.4.5 fo...
