Hi, we got a new ISP a month ago and it has been running in parallel with our existing ISP on our Cisco firewalls. I moved all the IPSec VPN tunnels over to the new ISP but the internet, ACLs, NATs etc are all still on the old ISP (when I do a whatismyip.com is still shows the old ISP)
We plan on moving everything over tonight to the new ISP (so that it shows the new IP on whatismyip.com) and all the internet traffic, NAT rules from servers, etc.
What all do I need to do and consider?
Can someone go into details about DNS (AWS and internal on DNS server)?
Anything I need to do in Active Directory? SMTP server? Spam filters (appriver)?