Connect to public facing ip from internal host

I have configured Istio 1.0.6 to have Ingress to my HashiCorp Vault / IAM Solution and trying to configure OIDC. As part of this I need the Vault component to connect to the IAM Solution via its public FQDN so that it can get the correct config.

Browser -> Vault works
Vault -> IAM fails with

Connecting to (
wget: error getting response: Connection reset by peer

I have tried to configure egress but it still fails.Is there a way to configure Istio so that internal hosts can connect to the Ingress gateway without using Mutual TLS?


upgrading to 1.2.4 resolved the issue.