Ip-address resolution
When we are using FQDN we have to make sure that we only choose the IpV4 address which is received from the resolution and we don't use IpV6. In docker or Kubernetes deployment, we mostly have a dual stack so it is possible that we get an IpV6 address in return.
This is temporary till the time all our NF supports Ipv6. Once they support we can use both Ipv4 or v6.
Edited by Sagar Arora