Hi all,
Hoping someone can give me some ideas here. I have a wireless guest network setup that is not allowed to talk to any devices on our production network. It does have internet access and uses OpenDNS for DNS services.
I have a couple of computers in conference rooms that are used by the public so I would like to put these on the guest network. I am wondering if there is a way to allow my staff to have access to OWA from these machines.
For example, typically staff could go to mail.mycompany.com/owa from their home computers. If I do this from the PCs on the guest network though, it does not work. I am assuming this is because DNS is resolving the mycompany.com to my external IP which also happens to be the IP that is being NATed by my firewall for internet access. Does that make sense?
Does anyone have any ideas how I could allow staff to access OWA from these guest computers? I know I could poke a hole in the firewall, but even then, that would require my users to enter the internal IP of the Exchange server. I prefer they use the external URL which they already know and are familiar with. I also don't want to have to prop up another DNS server just for the guest network.
Is it possible to have my guest network use a different public IP for outbound internet access? I have 5 public IPs available to me. Think that would work?
Apologies for the generalization but I am just wondering if these is feasible or if anyone else has done anything similar. I'm using a Cisco ASA for my firewall by the way.
Thanks for any advice!