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Subject: Re: 4.4-RELEASE as a NAT/gateway
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Matt Coe, CCNA wrote:

> Hey, I'm having some issues convincing my old Pentium 90 to behave as 
> a basic NAT box and gateway.. I've been a CCNA for nearly three years 
> now and I still haven't had a chance to properly play with other 
> people's networks, so I'm trying to make my own... but to no avail. I 
> downloaded the 5.x manual to help me set up the config files and 
> install the appropriate ports, but the machine doesn't seem to want to 
> forward packets. ipfw kicks in fine, natd seems to kick in fine.. I 
> can hand-boot routed and that seems to behave properly.. but nothing 
> goes from dc0 to rl0, for some reason beyond me. Here's a snippet of 
> my rc.conf if it helps:
>
> ifconfig_rl0="DHCP"
> ifconfig_dc0="inet 192.168.0.1 netmask 255.255.255.0"
> gateway_enable=YES
> natd_enable=YES
> natd_interface=rl0
> natd_flags=""
> firewall_enable=YES
> firewall_type=OPEN
>
> Is there any thing wrong with those lines? I could type out my entire 
> rc.conf if it's necessary... Anyone else have similar problems?
>
You don't mention re-compiling your kernel. Have you added at least the 
lines:

options IPFIREWALL
options IPDIVERT

and recompiled?

PWRW.