DMZ - Alternative to Bridging a Router

[BillA]

I know this is an older guide, I but I used it to solve an issue I was having. Would I still be able to use OpenVPN on this setup or do I have to have dhcp, etc. turned on to do so?

DHCP has to do with assigning local IP's to your connected devices. A VPN is used to established an encrypted connection. You can run it with or without DHCP depending if you're using your mobile router in bridge/bypass mode connected to a second router which serves DHCP instead. Generally you don't want two routers on the same network both serving DHCP, it can create conflict.

[JoshKelly]

OpenWRT/LEDE does not have a true bridge mode. The closest configuration to bridging is to DMZ (De-Militarized Zone) all traffic from the gateway router (WE826) to a secondary router/device (MAIN ROUTER) which will handle the DHCP and Firewall.

Does this break the custom TTL settings in GO if I follow the tutorial? Meaning will my TTL still be reported as 65 to tmobile even though my ER12 is taking care of all the router functions?

[Didneywhorl]

iptables should apply the mangle to all traffic through the interface specified. I think at least.

[JoshKelly]

iptables should apply the mangle to all traffic through the interface specified. I think at least.

Thank you so much Didney !