[FUG-BR] Problema com nmap

[Gelsimauro Batista dos Santos]

Eu estou usando o FreeBSD 6.0 quando uso o da a seguinte mensagem.

map localhost
Starting Nmap 3.95 ( http://www.insecure.org/nmap/ ) at 2006-06-20 10:32 UTC
getinterfaces: Failed to open ethernet interface (rl1)
QUITTING!

____________________________________________________________________________________
1- O conteudo do meu /etc/hosts
# $FreeBSD: src/etc/hosts,v 1.16 2003/01/28 21:29:23 dbaker Exp $
#
# Host Database
#
# This file should contain the addresses and aliases for local hosts that
# share this file.  Replace 'my.domain' below with the domainname of your
# machine.
#
# In the presence of the domain name service or NIS, this file may
# not be consulted at all; see /etc/nsswitch.conf for the resolution order.
#
#
::1                     localhost localhost.my.domain
127.0.0.1               localhost localhost.my.domain
200.200.200.2           server
#
# Imaginary network.
#10.0.0.2               myname.my.domain myname
#10.0.0.3               myfriend.my.domain myfriend
#
# According to RFC 1918, you can use the following IP networks for
# private nets which will never be connected to the Internet:
#
#       10.0.0.0        -   10.255.255.255
#       172.16.0.0      -   172.31.255.255
#       192.168.0.0     -   192.168.255.255
#
# In case you want to be able to connect to the Internet, you need
# real official assigned numbers.  Do not try to invent your own network
# numbers but instead get one from your network provider (if any) or
# from your regional registry (ARIN, APNIC, LACNIC, RIPE NCC, or AfriNIC.)
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2 - Tenho o IPFW rodando como Firewall, mas já retirei todas as regras 
ficando a penas o regra "65535 allow ip from any to any" e nada.

3 - Estou rodando o NMAP como ROOT.

Alguem pode me ajudar???