Home Network Setup Problem

[deltaski at earthlink.net]

On Friday 09 September 2005 09:58 am, you wrote:
> On Friday 09 September 2005 07:39 am, deltaski at earthlink.net wrote:
> > Thank you all, who have considered this message!
> >
> > I am learning BSD with 3 successful units. 1-100mhz pent. running
> > 4.11 1-180mhz pent. running 5.4 and one 266mhz AMD running 5.4
> >
> > I have learned the ins and outs of X, changing rc.conf and am quite
> > good at reinstalling the system after a few "learning" adjustments.
> >
> > Just for fun and my own enjoyment in learning, I have now accepted
> > the challenge of my own home network. I have been able to connect all
> > boxes to my DSL router with DHCP and manual IP assignments and
> > changed/setup NIC's with ifconfig. My reference materal is the
> > Handbook from FreeBSD.org and "The Complete FreeBSD" by Greg Lehey.
> >
> > Now the problem!
> >
> > DSL is 192.168.1.1 - Box B has two NIC's rl0=192.168.1.100 netmask
> > 255.255.255.0 and is connected only to 192.168.1.1 ping works/outside
> > internet works.
> > Box B second NIC rl1=172.16.1.1 netmask 255.255.255.0 and is
> > connected to a standalone switch/router.
> >
> > Box A has one NIC eth0=172.16.1.35 and is connected to the standalone
> > switch/router. Box A can ping 172.16.1.35 and 172.16.1.1 on box b. It
> > can NOT ping 192.168.1.1 or access any outside internet.
> >
> > >From Box B keyboard, I can ping
> >
> > 192.168.1.1/192.168.1.100/172.16.1.1/172.16.1.35
> >
> > >From Box A keyboard, I can ping only 172.16.1.35/172.16.1.1
> >
> > I have tried ifconfig rl0 192.168.1.100 172.16.1.1 netmask
> > 255.255.255.0 among many other configurations without success.
> >
> > >From my reading, I think the error of my ways is in the Box B
> > > between nic rl0
> >
> > and rl1. The data packets are not being forwarded from rl1 to rl0 or
> > rl0 to rl1. Somewhere I have missed something. If anyone could point
> > me in the correct direction, it would be greatly appreciated.
>
> In your /etc/rc.conf, you need to tell machine B that it is a gateway.
> Since you are using RFC1918 IP addresses, you probably should turn on
> natd. It is much easier if the switch is right after your DSL because
> then, you don't need B to be a gateway and you don't need to run ipfw
> to get natd.
>
> Kent
Kent, natd is turned on, default gateway is set. I understand your suggestion 
of changing the location of the switch, but, I simply wish to learn the setup 
of a gateway machine. Thank you for your input.
Donald