IPv6 connectivity to pod with port mapping broken

[QxBytes]

What happened: Cannot connect to pod from node through node ipv6 + port when port mapping policy specified in dualstack

What you expected to happen:
Connection succeeds

How to reproduce it:
Repro: Create a dualstack cluster with windows nodes Create a pod with port mapping policy (but no host ip) Node shell onto the node with the pod Test-netconnection to the : If using the ipv4 address of the node, there is a success, but using the ipv6 address fails Get-HnsEndpoints should show two cni policies, one for ipv4, and one for ipv6 and so the connection should succeed

Orchestrator and Version (e.g. Kubernetes, Docker):

Operating System (Linux/Windows):
Windows

Kernel (e.g. uanme -a for Linux or $(Get-ItemProperty -Path "C:\windows\system32\hal.dll").VersionInfo.FileVersion for Windows):

Anything else we need to know?: This issue appeared after using a binary with #2852 applied Suspected HNS issue (currently being looked at)