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How to run Sophos UTM Home in Virtualbox with only a cable modem connected

How to run Sophos UTM Home in Virtualbox with only a cable modem connected

Hi there,

I want to secure my home network and make it somehow power efficient.

That means, I switched from a cable router from unity media (german cable provider) to a simple cable modem with no "intelligence".

 

My initial plan was to power a small "server" which should do the following:

- Running Win10 LTSB as I don't get along with Linux / ubuntu

- Running a Raid1 for Media Files and Backup

- Running as a HTPC with Kodi

- Running a VirtualBox with Sophos UTM running

 

Quick Specs:

Intel i3 Skylake Proc

1x Intel QuadPort NIC

1x Intel Onboard LAN

16GB Ram

1x SSD OS

1x SSD VM

2x 2TB HDD

 

Now there are two things I still don't know

1. Is it possible to grant the VirtualBox "exclusive" access to one physical NIC, so the Host System can't be directly accessed?

2. How to configure the NICs in UTM that the NIC connected to the cable modem gets the public IP (WAN) <- this NIC should haev access to the host system

3. How to configure the separate NICs that other Clients / PCs / network Switches can be connected.

 

All tutorials I read had a (cable) router installed, that managed the WAN / LAN connection.

I followed this guide:

rationallyparanoid.com/.../sophos-utm-tutorial-virtualbox.html


And this thread doesn't really match my "adventure"

community.sophos.com/.../sophos-as-a-vm-in-virtualbox


I hope someone out there can help me =)

 

Best regards,

Daniel



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