David,
You can use any hardware router as long as it satisfies one of two requirements:
1) That there is no built-in firewall in the router
or
2) There is a firewall, but certain ports have been enabled. For more information about firewalls and networking Lookout, please see the developer's zone tutorial entitled "
Networking Lookout or The LabVIEW DSC Module Across Firewalls"