For failover purposes we might want to have multiple routable /24 subnets at the outside of the CSS (facing the Internet.) But I understand that if you put a secondary IP address on a circuit/VLAN associated with an interface - the CSS will not be able to balance the secondary. Most of the configuration examples only go into having a single subnet at the outside and a single subnet on the inside. How could I have multiple subnets at the outside? Thanks.