I can confirm that FreeBSD 7.0-RC1 can route packets at 1gbps. I used a late-model Supermicro Xeon server which has two gigabit NICs on a PCI-express "4x" lane. With the new em driver improvements in 7 it uses very little CPU time, I would recommend using Pro/1000 on 7.0 with a decent server motherboard if you want to achieve this speed. - Andrew