Blocking routing between subnets

[pgr]

Hi,

my Wingate Server 6.2 has three NICs: one for the cable Internet connection, one for subnet A, one for subnet B.

I want both subnets to be able to communicate with the server, and this is working fine.

But I do not want the subnets to see each other, but currently they do. I disabled UDP routing between subnets (in ENS properties, routing) which worked fine for stopping Windows file sharing, but I was wondering if there's a good way to block ALL traffic between those networks, making them totally invisible to one another.

Perhaps this is a bit more low-level than Wingate, maybe it's done with the route table? I'd be very grateful if anyone could give me some advice.

Thanks.

[jamesc]

[pgr]

Thank you very much!