VPN on the ZTE H110
Hey John, here is the response I got back from ZTE engineers - looks like this router is quite different from the demo we put under lab trials.
How is VPN passthrough setup with an internal server on the ZTE when using it with EVDO?
First is to set up WWAN connection in the ?Setup? manual. Then under ?Security?, click ?New IPSec Connection? button on the left side, configure VPN IPSec based on your requirement. When select manual on ?Key Exchange Method? option, you can see the ESP or AH on ?IPSec protocol? option. Then you can select ESP or AH.
Is it possible to forward just GRE protocal 47 (pptp) and IP protocol 50 (IPSec) without forwarding every external inquiry by setting up a DMZ?
ESP protocol is protocol 50 (IPSec), AH is protocol 51 (IPSec). There is no problem with protocol 50. For GRE 47 (pptp), I did not see any configuration on the configuration manual, but you can find the solution for GRE 47. You can put VPN Gateway for GRE 47 on the server which is connected with LAN side of HGW, use ?Port Trigger? configuration set up to let client on internet side to access server on LAN side of HGW. It has UDP & TCP option. There are ?Port Trigger? and ?Port Forwarding? feature available for ZTE HGW. Microsoft has products to support GRE 47. Please check with Microsoft for implementation.