'Static filters are filters that have no need to be IP aware.
There is no configuration or tuneability of these filters, so they
can be set up once and forgotten about.'

def _ensure_static_filters(self):

    if self.static_filters_configured:
        return
    filter_set = ['no-mac-spoofing', 'no-ip-spoofing', 'no-arp-spoofing']
    self._define_filter(self.nova_no_nd_reflection_filter())
    filter_set.append('nova-no-nd-reflection')
    self._define_filter(self._filter_container('nova-nodhcp', filter_set))
    filter_set.append('allow-dhcp-server')
    self._define_filter(self._filter_container('nova-base', filter_set))
    self._define_filter(self.nova_dhcp_filter())
    self.static_filters_configured = True
