Routing problem

[joshua lokken]

>From which interface?  Try these:
>
>ping google.com
>(that will ping using the external interface)
>>ping -S 10.0.0.1 google.com
>(that will ping using the internal interface)
>
>If one works, but not the other, post your firewall
>rules and natd command line.

Hello,

The FreeBSD machine is simply passing traffice for
the time being, no ipfw, no NAT.  I know the name,
ut not much mre about the DSL modem I was given.It's an ARESCOM800, and the 
service is **wince**
MSN DSL.  The modem has a very simple html display
that gives me the very basics; modem IP (192.168.1.1),
netmask (255.255.255.252) and external IP.

rl0 is the modem-facing interface (external) on a
FreeBSD 4.9 "gateway".  de0 is the LAN-facing
(internal) interface on the same machine. /etc/rc.conf
says:

ifconfig_rl0="DHCP"
ifconfig_de0="inet 10.0.0.1 netmask 255.255.255.0"
gateway_enable="YES"
defaultrouter="192.168.1.1"

I can reach the outside world from both intrefaces on the
gateway.  rl0 is configured thusly (automatically via DHCP):
inet 192.168.1.2 netmask 255.255.255.252, with a default
gateway of 192.168.1.1.

Clients are configured as follows:
inet 10.0.0.x
netmask 255.255.255.0
defaultrouter 10.0.0.1

>From a client machine on the 10.0.0.0 network, I can ping
both de0 and rl0 on the gateway, but I cannot get any traffic
past rl0 to the cable modem from the LAN client.  That is
where my minimal understanding of routing ends.  I do not
know why I cannot pass traffic to the modem and out.  I
hope this makes my problem clearer, thanks for the help.

After following up on the above reply, I find that I cannot
ping out from the LAN interface (de0, 10.0.0.1).  Hmmm,
and again, no ipfw or NAT on the FreeBSD firewall.

Joshua

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