@Clive_A This is useful, thank you

This has reared its head again on ER8411 1.3.0 Beta I thought i had resolved it by setting up IP groups as assigning those as the source in my Policy routes, rather than "Networks" It has started...

@MR.S No i havent, im waiting on ER605 v2 firmware so i can muck about with it on the "remote site" at my house so i can fix it easily if it goes wrong!

Clients -wired view literally has a column for macs and swith ports connected to

I can confirm this works on both routers with adapted firmware so far (7206 v2 and 8411) As for why anyone would want this over one-to-one NAT, which i think is a far better way of achieving what is...

@Clive_A right - its like switch routing - at this point the WAN IP of the 8411 is just that - a forwarding IP, the actual packets still contain the original vlan 20 IP headers so the upstream 7206...