Weird Problem...

[Vulpes Velox]

On Wed, 19 Nov 2003 10:13:37 -0600
Peter Elsner <peter at sri-software.com> wrote:

> Okay, I have a really weird problem.
> 
> Running FreeBSD 4.8-RELEASE (just installed it from CD).
> 
> It's a basic gateway setup with 2 NIC cards.
> I've done this set up a hundred times and have never seen this before.
> 
> DSL modem (with static IP address) goes into one NIC card (dc0).
> Status is active, and from the gateway box, I can ping out to the world.
> 
> Second NIC (dc1) is connected to a hub, with internal IP 192.168.0.1.
> 
> DHCP is running and assigning IP addresses to workstations.
> 
> Workstation is WinXP Professional, and it is set to obtain IP and DNS 
> automatically.
> This works, I do get an IP address of 192.168.0.240 (the dhcp range is 50 
> to 240).
> I have DNS, if I look at network settings, the DNS IP addresses contained 
> in the /etc/resolv.conf
> and the dhcpd.conf file from the server are there.
> 
>  From the workstation (a dos prompt), I can connect to the server at 
> 192.168.0.1 and I can ping the server.
> Which means I have a connection.
> 
> But I can't ping the outside world or connect anywhere else to the outside 
> from the workstation.
> I have tried both by host name and IP addresses, so DNS issues can be ruled 
> out.
> 
> Also, from the server, I can ping the workstation, (192.168.0.240) and it 
> responds...
> 
> tracert yahoo.com (from dos prompt), goes to the server 192.168.0.1 and 
> then says it
> can not go any further.  Almost like the DSL modem is preventing from 
> anything going out,
> unless it comes directly from the server.
> 
> Right now, I can only connect up to 4 workstations to a Netopia 4 port DSL 
> router.
> 
> But I have 2 other workstations to connect, and can't do that until I can 
> get this issue
> resolved.
> 
> Has anyone ever seen this problem before?

If you can't get out side of the lan, what comes to mind is that you are not
running nat on the gateway or do not have the gateway set on the windows box...