Using LTE Hotspot feature as failover WAN?
Recently, when our COX internet went down, I thought about how I could use the hoptspot feature on my iPad 3 with Verizon 4G LTE as a temporary internet source for our network on the rare occassion when COX goes down.
I acquired a wireless bridge, and wirelessly connected it to the Verizon hotspot on my iPad then connected the bridge to the WAN failover port on my Sonicwall.
I went about testing it, and pulled the plug on the COX internet. My Sonicwall switched over the failover WAN and within a minute or so, I was able to surf on my desktop PC using the Verizon LTE and iPad Hotspot connection! So, that part works.
Next, I need incoming and outgoing email through my Exchange server. So, I configured my Postini service with a failover IP address, that being the IP of the Verizon LTE I had acquired. Unfortunately, no email ever reached my Exchange server. I could see through Postini that it was showing failed connections to both my IP addresses (normal and failover). I double-checked my Verizon IP and it was correct.
So, the only thing I can think is that Verizon is blocking SMTP on the hotspot sharing feature? Can anyone confirm this? Is there a way around this?
I'd sure like to take advantage of this functionality if it's possible. We're a very small home office and would be utilizing minimal traffic over this connection.
Thanks.