help on ASA 5510 SETUP

Hello
I got stock with an ASA 5510 SEC.App. firewall I have to setup at work to publish our corporate mail server.The network infrastructure that I am working on has been but in the following Example:



ISA(172.16.1.2)

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(intrenal:172.16.1.1) ASA 5510 (Extrnal: IP2)

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(ISP Router: IP)

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DMZ Intrface: 10.0.0.1

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(10.0.0.6)

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(10.0.0.5)

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Web Server

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SMTP Server

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Mail Relay

Can any body give me a clue on how to start setting up this fire wall, because want to instruct ASA 5510 to:
1- forward all inbounding Mail (mail.company.com) requests to the SMTP server (mail Relay server) which resides in the DMZ zone, and which will forward mail to the smart host and then to the front edge connector through ISA using port 443, AND
2- to forward the inbound company;s site (company.com) requests be forwarded to the web server.
Assuming IP/Subnet Address assigned by the ISP
IP1 => Gateway
IP2=> Assigned to ASA's external interface (OR shouldn't I?)
IP3=> assigned to mail.company.com
IP4=> assigned to company.com
I think the setuation is clear any help please..
Thanks alot in advance
Best Rgegards

What is IP 1?

You should need an external IP address for the outside interface of your ASA, the mail server, and the webserver.

Then you need to create static NAT translations for each external IP to internal IP addresses.