I feel like us AWS/UTM users need our own support group sometimes...
anyway-- a hopefully simple question:
For setting up IPSec site-to-site tunnels to servers within a private subnet of a VPC, is it always necessary to have NAT-T enabled in order for the the IPSec traffic to get routed through Amazon's network infrastructure correctly?
I've gotten conflicting answers from AWS on this and my own experience has been equally mixed. I have several tunnels that SEEM to work ok with NAT-T disabled, but at least one that absolutely will not come up unless it's DISABLED on both sides. In other cases, traffic seems to get routed properly only if it's ENABLED.
Since this is apparently a global setting on the UTM, I'm in a bit of a pickle. Anyone with any experience/success stories in this area?
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