Forbid IPv4-mapped IPv6 addresses in dual-stack

Contributes-to: OCPBUGS-10695

Author: mkowalski

networking/ovn_kubernetes_network_provider/converting-to-dual-stack.adoc

@@ -14,5 +14,10 @@ After converting to dual-stack, all newly created pods are dual-stack enabled.
 A dual-stack network is supported on clusters provisioned on bare metal, IBM Power, {ibmzProductName} infrastructure, and single node OpenShift clusters.
 ====
 
+[NOTE]
+====
+While using dual-stack networking, you cannot use IPv4-mapped IPv6 addresses, such as `::FFFF:198.51.100.1`, where IPv6 is required.
+====
+
 include::modules/nw-dual-stack-convert.adoc[leveloffset=+1]
 include::modules/nw-dual-stack-convert-back-single-stack.adoc[leveloffset=+1]