apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: external
  namespace: metallb-system
spec:
  addresses:
    - 2600:1700:4a50:8a9f::/64

---
apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
  name: external
  namespace: metallb-system
spec:
  ipAddressPools:
    - external