The 2 Speedstream 6520s with Firmware Part #:004-E752-AEP Config Part #:003-6045-G0G
and the pfsense box were powered down. The SS6520s were then powered up. After the Power, Ethernet, DSL and Internet lights on the SS6520s were illuminated pfsense was powered up.
Neither SS6520 registered the pfsense dhclient Hostname. MAC address registered.
Both Static and Dynamic addresses were tested on the SS6520s.
For your reference the pfsense box has 4 ENL832-TX-RENT PCI ethernet adapters using the RL driver.