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exchange-servercisco

Exchange server behind Cisco router

I have Cisco 2801 router with public IP and NAT enabled effectively providing Internet access to users behind it. How to publish Exchange server behind the router using above mentioned Public IP so users can send/receive emails while not in the office using Outlook as well as with OWA and Mobile ActiveSync.

BR, Oleg

Solution

  • You will need to open ports that are required for Inbound access on the Cisco 2801. Assuming that you want to open port 443 for the OWA on server 10.1.1.1, you will enter something like the following

    ip nat inside source static tcp 10.1.1.1 443 interface Fa 0/0 443

    Where Fa 0/0 is the Interface connected to the Internet.

    Be careful when you open ports; you need to have good understanding of Firewalls and Security design of your Network.