if i understand your requirement you will let only the router do the NAT ?
it is recommanded that the ASA does the NAT.
you can divide your public range using subnetting: you need 2 IPs for the subnet on the external interface of your router and the remaining for the internal one. so the ASA wil have one public IP and can do the NAT.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...