Add ndproxy to support neighbor discovery of VMs from the public internet.

ansible/roles/ndproxy/tasks/freebsd.yaml

@@ -0,0 +1,15 @@
+- name: Install packages
+  package:
+    name:
+      - ndproxy
+    state: present
+
+- name: Install service configuration
+  copy:
+    src: "files/{{ item }}_rc.conf"
+    dest: "/etc/rc.conf.d/{{ item }}"
+    mode: 0644
+    owner: root
+    group: wheel
+  loop:
+    - ndproxy