NAT trouble

[Björn Lindström]

I'm having some trouble to get NAT working on the Internet gateway of my
home LAN.

Here's my setup:

I have compiled a kernel with the following options added:

options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_VERBOSE_LIMIT=10
options IPDIVERT

I have these relevant settings in my rc.conf:

gateway_enable="YES"
firewall_enable="YES"
firewall_type="OPEN"
natd_enable="YES"
natd_interface="tun0"
natd_flags="-f /etc/natd.conf"

(Where tun0 is the interface of my ADSL connection.)

My natd.conf only contains this line:

redirect_port tcp 192.168.0.2:15000 15000

Now, when I reboot, ipfw show shows this:

00050   0      0 divert 8668 ip from any to any via tun0
00100   182   15680 allow ip from any to any via lo0
00200     0       0 deny ip from any to 127.0.0.0/8
00300     0       0 deny ip from 127.0.0.0/8 to any
65000 11015 3073646 allow ip from any to any
65535     4     236 deny ip from any to any


Here are the problems:

* ps ax|grep natd shows that natd is not running.

* While I still cat get to the gateway from the inside, connections to
  the Net doesn't work, until I 'ipfw delete 00050'.


I hope someone here has a clue as to what may be wrong with my setup.

Thanks in advance,

Björn