My HH5 is on the north side of a W2K8 server running TMG/ISA firewall. The internal network is 10.x.x.x , the second NIC on the server is on 192.x.x.x and connects to the HH5.
The HH5 runs DHCP for the wireless clients but I also have a RAS server listening on 192.x.x.x for VPN clients connected via WifFi to the HH.
All wireless devices bar one pick up a 192 address from the HH DHCP, one laptop however picks up a 10.x.x.x when connected to the HH SSID. This can only be coming from the RAS service on the windows server but I can't for the life of me think why the RAS DHCP gets in on the act before the HH DHCP.
This clearly is a security risk since it is now possible to pick up an internal address when connecting to the HH5.