Inbound 4g LTE vpn failover
Does anyone know how to set up a secondary inbound connection to a firebox using a 4g lte router ?
We have poor internet and a number of remote users and that number is about to increase and so I want to have some users come in through one connection and other users come in via a different connection.
The second connection is a 4g LTE connection with good Internet speeds but I can’t get my head around setting it up because all I have is the ability to use DMZ as I can’t put the 4g router into bridged / modem only mode as the firebox doesn’t seem to be able to do NAT or know how to authenticate.
I have set up DDNS on the 4g LTE so users can hit the router but stuck on how to route the traffic after that.
I have, let’s say, the IP address of LTE as 192.168.1.1 and I have put the DMZ port as 192.168.1.2
I have the firebox as a static IP with address 192.168.1.3 and gateway as 192.168.1.2
That seems to work with regards flow of traffic but I can’t get mobile SSL VPN users to get to the firebox. Does the 4g LTE connection have to be EXTERNAL, OPTIONAL or BRIDGE ?
Do I have to set a new SSL VPN firewall rule or just amend the current one to set the 4g LTE connection as a new inbound connection ?
I am not concerned about internal traffic going out via the 4g, only interested in getting remote users connected to the firebox via SSL VPN via the 4g router.
All help appreciated.