Problem with OIDENTD

[Dominique SA]

Hey guys, I'm using FreeBSD 5.4, with oidentd 2.0.7 and PF. I can run oidentd fine but when i try to run it with the -m flag (masquerade flag) it tells me:
Fatal: Can't open kmem device: No such file or directory
Though:
mem.ko module is loaded and:
crw-r----- 1 root kmem 244, 1 Jun 24 16:06 /dev/kmem

any ideas on how to fix this? I would like to use the Masquerade thing for my computers on my network.

Thanks