Virtual ip addresses for RDS sessions

I have a Win2k8 R2 Rds server with virtual IP enabled per session.
I created a new dhcp scope for it
But the problem I'm faced with is as follows

when I run an ipconfig on the first session I get 192.168.10.6
And then when I do the same for terminal two (T2) I get 192.168.10.6
192.168.10.7

Ipconfig for terminal session 3 192.168.10.6
192.168.10.7
192.168.10.8

Ipconfig for terminal session 4 192.168.10.6
192.168.10.7
192.168.10.8
192.168.10.9

Ipconfig for terminal session 5 192.168.10.6
192.168.10.7
192.168.10.8
192.168.10.9
192.168.10.10

I thought I was only meant to get two ip addresses? the RDS server's physical address and the virtual ip address.
I've tried setting static ip adddresses and via a registry fix which allows you to specify a start and end of the allocated ip range including a subnetmask.

I've tried the same via a local gpo on the RDS server without avail.

Looking forward to hearing back from everyone. Thanks!!