XG and DHCP - where to go?

Hi there,

I am a home user. I have a modem/router combo, behind this an asus router, which I need, due to tx/rx performance.

I had the idea to use my home sever as a (virtual) firewall, why I have virtualized a Sophos XG (latest) firewall in Hyper V. Added an exclusive NIC facing the modem, and gave acces to the second NIC, which came into the WAN port of th asus router.

I played around and it worked, however I couldnt see any users behind the asus user, so I put the Asus router in Access Point mode, which broke the guest network. Okay, so lets put the Asus router back to router mode, disable NAT, and add a static route to SF.

This worked, and at the same time didnt. DHCP only worked in different interfaces, with different subnet. As soon after I did add them to one bridge, DHCP didnt work for the asus router. Static IP didnt work either. Sometimes it did show other clients from the internal network on the homeserver (VMs), sometimes it didnt, from when it worked, I could only partially acces other VMs.

After 12 hours I gave up, and I am sort of frsutrated. In my research I saw people saying the DHCP is not very strong on the XG, and so I am wondering about useful home deployment.

I admit: I only added one separate LAN to LAN rule on the firewall rules.

So yes Iam eager to learn, however it is not easy. Thankful for good go to

Feel free to answer in German, as this is my mother tongue.