Cisco 5516-X with firepower services behind Cisco router

[Breejesh]

Hello Experts,

I am tasked to deploy a new Cisco 5516-X ASA (with firepower services) behind an existing Cisco router. Purpose of this addition is to setup remote access and IPsec VPN tunnels on the Cisco ASA. 

So it will be ISP => Cisco Router => Cisco ASA => L2/L3 switches

Question is , if ASA will have connectivity with Cisco Router on Outside interface having private IP address (172.27.x.x/24), how remote access clients (anyconnect) and IPSec VPN tunnels will work considering the fact that Outside interface of ASA is not having public IP address? 

Apology if this is silly question as I am little bit new to ASA.

Thanks in Advance!

[Rob Ingram]

Hi @Breejesh

You just need to setup a NAT on the router for the ASA. RAVPN user's will connect to the public IP address (of the router) which will be transalated to the private IP address of the ASA's outside interface.

HTH

HTH