http://www.informit.com/store/design-and-implementation-of-the-freebsd-operating-9780321968975
Rename fxp0 to em0 in /etc/rc.conf:
fxp0
em0
/etc/rc.conf
ifconfig_fxp0_name=”em0″ ifconfig_em0=”inet 10.3.2.1 netmask 255.255.255.0″