JW0914
Since cellular radios don't adhere to 802.11q, their MAC addresses are dynamically assigned at boot, thus changing every time the device is rebooted. While I believe the answer to my question will be no due to the aforementioned, is there any way of assigning a cellular radio either a permanent IP or MAC to use to connect to the VPN Server?
The reason why I'm asking is unless absolutely necessary, I don't unstealth ports on my router, and while I have created mac filtering iptables rules for all devices connecting through my VPN Server, I obviously can't do that with a cellular radio and had to unstealth the VPN port I use and make it available to WAN without any filtering.
The only way I thought I might be able to accomplish this is by manually changing the cellular radio MAC prior to connecting to the VPN Server, however I have no experience doing so on a cellular radio and have no idea if it will cause issues with 4G/3G data or elsewhere.