Public IP Address Added To my Cisco Router for Application Access

Okay, I have a Cisco 506 Firewall and I have an application that needs to be able to be accessed from the outside.

My firewall has a public and private interface.  70.XX.XX.XXX and 10.X.X.X.  I have assigned a public IP address to the server hosting the application, now how do I go about granting my outside users the ability to access it?  

I need my outside users to be able to enter the public IP address or External DNS address and be routed via a port forward to the application on server.  Do I need to add an additional interface to the router?  I would like to be able to ping the public IP of the server to verify it is working.

Can someone help?

Who is Participating?
Hi Randy,

Please verify whether your application is TCP or UDP. It's very important. The example that I write is based on SMTP traffic. Update it to suit your application.

access-list 100 remark ---=== Ethernet Inbound Traffic ===---
access-list 100 permit tcp any any eq smtp
static (inside,outside) tcp 70.XX.XX.XXX smtp 10.X.X.2 smtp netmask 0 0
access-group 100 in interface outside

and 10.X.X.2 is your SMTP server

I hope this make sense. Remember to change TCP to UDP where applicable.

Good Luck.

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