I will be going to our remote office this weekend to complete several projects and I need help with one of them.
I will be physically moving an exchange server from our current remote office location to the new remote location a few miles from there.
Once i have it racked and connected to the network, I will need to do some firewall configuration. I do not have much experience with the ASA firewalls and need help. Please include as much details as possible.
Internal IP: 192.168.1.100 (new internal exchange IP)
External IP: 64.x.x.x (new external exchange IP)
ASA Version: 9.0
What changes do i need to make on the ASA firewall or properly translate it (NAT) and allow email flow (port, ACL). Currently, there is no DMZ. That will be coming in a few months from now. Currently, there is only internal and external interface on the firewall.
Question #2 - Is it possible to use the same external IP address for two services if they are using different ports? If i assigned the same external IP address to our exchange server that our web server uses (port 80), would that be ok? Or each service requires the unique external IP address?
Thank you very much,