:param first_ip_address: First IP address
:param last_ip_address: Last IP address
:param vrf_id: VRF id for the address range
:param is_add: 1 if add, 0 if delete (Default value = 1)
:param first_ip_address: First IP address
:param last_ip_address: Last IP address
:param vrf_id: VRF id for the address range
:param is_add: 1 if add, 0 if delete (Default value = 1)