Switch to Comcast IP on SonicWall TZ100 OS Enhanced 220.127.116.11-43o
Posted on 2013-01-03
I am currently trying to switch ISP's from Megapath DSL, to Comcast Business class. The problem I am having is, when I unplug the SonicWall WAN port, and then plug in the Comcast WAN, and configure the Static IP settings, interent works just fine. However, are company make it's money off of the 3 websites on the webserver. For some reason when I make the cut over we are unable to hit the websites by their new External IP addresses.
The thought was that I would be able browse to the websites via new External IP's. Once that tested out then we could log into Network solutions and change the TTL so that the clients would not notice that the IP address changed and dns would work?
I don't understand what I am doing wrong, and I am not familiar with the SonicWall that much.
"Firmware Version:	SonicOS Enhanced 18.104.22.168-43o"
I really need help from you experts on this as I am really getting some grief for not having this working.
If there is a way I can plug the new Comcast Line into the TZ100 and make changes and simply cut over great? If, not then please let me know where you think my mistake is? Also, I have never been able to test the cut over for more than 20 minutes. So not sure if there would be some sort of Cache issue for the websites, or if their is another place that I would change the external IP's besides in the NAT policies, and firewall access rules? But as I said the internet works fine, and are email is through the internet, but the websites, all 3 won't work?