Re: [PLUG] Network Routing on a Test Network

Assuming the router in question has NAT turned off, All you have to do is have all your machines on the virtual segment set that router as their default gateway, make sure that the router has a default route to the main router and also make sure that the main router has a route for the virtual segment that points at the router in your virtual environment.

On Fri, Jun 4, 2021 at 1:53 PM Casey Bralla via plug <plug@lists.phillylinux.org> wrote:

I want to build a virtual test network in VirtualBox so I can play
around with various servers. Please see the attached pdf of the network
plan. I want the test network to be on a completely separate subnet so
that I don't get stuff confused.

I'm stuck on building the router gateway machine and getting it to route
packets from the virtual test network into the real network to access
the internet.

I would prefer not to use DNAT to isolate the test network, because I
want to simulate having these servers in the "real" world. I have used
shorewall in the past, but only in the DNAT environment, and setting it
up to act as a "send-it-all-through" router is bummfuzzling me.

Can somebody point me to a reference for setting up the router/gateway?

TIA!
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