We are switching T-1's, same Telco, but we are physically getting new lines installed and we are going to have new Ip's. I have a concern that when we switch Mx records aren't going to be the only that needs to be changed. Can anyone tell me what I should be thinking about in regards to switching Ip's?
1.We are going to have the router in front of our firewall
2. We don't have anything specifically that points to our network from any clients
3. We don't have Voip