netmap/pkt-gen error

hi all,
i am running FreeBSD 9.0R with netmap already in it.
i compiled the pkt-gen.c with gcc in tools/tools/netmap.
after i do ./pkt-gen -i eth0 -f tx -n 500111222 -l 60 -w 5

i get an error:
-Unable to open /dev/netmap
-Unable to register bge0 (renamed to eth0).

i am using the default bge0 (Broadcom BCM570x PCI Gigbit Ethernet card).
and its configured and active. checked via ifconfig
when i go to dev: cd /dev, i find no netmap directory.

any idea on the errors/ help.

/BR
Ahmed
Masters student at
Mid Sweden Universit