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Configure Exchange 2003 Behind Cisco ASA

Hi,

I want to setup an exchange server behind Cisco ASA. I have a static ip from the ISP with Subnet mask and Gateway details. My setup is as mentioned below.

Static IP from ISP - 80.227.*.*

Subnet Mask - 255.255.255.252

Gateway - 80.227.**

My internal IP is 192.168.1.0/24 and my mail server ip is 192.168.1.7

I know in ASA for outside interface i should give the Static Ip i have with Subnet mask from ISP and by setting up default gateway on routing i should be able to browse the network from my LAN. (Correct me if i am wrong)

I have an MX record for my domain with the static ip i am having.

What i want to know is how i should configure mails coming to the static ip to go to the exchange server with LAN ip 192.168.1.7

For eg i want all traffic coming from outside on ports http, https, pop3, smtp and IMAP to go to mail server.

Thanks

Qman

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tntmax

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JFrederick29

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tntmax

So here's your NAT translation:

static (inside,outside) tcp interface smtp 192.168.1.7 netmask 255.255.255.255

Then you'll need an ACL:

access-list inbound extended permit tcp any host 80.227.*.* eq smtp

You'll need that for each port that you want forwarded to your server. Replace the * with the actual IP address numbers. This would be just for port 25.

tntmax

haha, beat by the faster typist.

JFrederick29

<8-}

qman2007

ASKER

Guys,

Thanks for all your comments. Let me check the same and will come back to you. If anyone can tell me how to do the same using GUI (Connected to ASA using ADSM) it will be more helpfull. Sorry, i am not that great in Command.

Appreciate all your help

Thanks

Qman

JFrederick29

Should be able to simply copy and paste the commands into the CLI without modification.

pniaz

Should he be purchasing Cisco gear? Sorry Im just being an ass.