Here is my scenerio.
I have a client who has a UNIX based email server which is connected to a T1 with a public IP assigned to it.
My client has dicontinued the T1 service but the Unix based email server (Avaya) can not be altered by us. (Password locked)
Next, the resellers of this product have been very difficult and have basically admitted to us that they do not KNOW how to change the IP of the unix based machine. (They stopped selling it) We are not very unix oriented and don't want to take responsibility for this machine.
Now, since the new ISP took over, the unix based server is no longer active due to the Public IP assigned is not in the same range of the new ISP. Now after some research we have thought of a way of doing this. Is it possible to hook up the UNIX device to a lets say a "Sonicwall TZ170(which is apart of the network)" and configure a route to make this unix server part of the new existing network? Or will this device not communicate with the new network?
Thank you for your time.