Re: Routing behind NAT server

From: Phillip Windell (_at_.)
Date: 12/29/04


Date: Wed, 29 Dec 2004 10:21:51 -0600


"ping" <wterng@gmail.com> wrote in message
news:1104334133.828134.196360@z14g2000cwz.googlegroups.com...
> Could it be the NAT(of modem) filters out the packet as it is not
> originate from 1.1 network(assign by DHCP.)?
>
> Yes, I have set RIP on both modem and win2k server. The internal
> network routing is fine. Only the 3.x network refuses to go to
> internet.

I suspect that RIP isn't really working on the NAT Device, so the NAT device
has no idea where 192.168.3.x is or how to get there. I don't know why you
are even trying to bother with it anyway. The only thing you need is one
single static route on the NAT Device that specifies that the route to
192.168.3.x is found by using the gateway of 192.168.1.13 from the interface
192.168.1.1.

None of the other machines need any "routes" at all.

The hosts (except the Server) on 192.168.3.x will all use 192.168.3.254
(Server internal Nic) as their Default Gateway.

The hosts (except the Server) on 192.168.1.x will use192.168.1.13 (Server
external Nic) as their Default Gateway.

The Server will *only* use 192.168.1.1 (NAT Device) as the Default Gateway.
This will exist *only* on the External Nic (192.168.1.13). The internal Nic
will have a *blank* Default Gateway.

-- 
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com


Relevant Pages

  • Re: modem and default gw
    ... In /etc/network/interfaces is defined a gateway that is used by the ... and the command ip route shows this defgw. ... When I use Kppp and the modem to connect to the Internet, ... Are you saying that when not using your modem, you have a route to the ...
    (Debian-User)
  • Re: I can send packets but I receive nothing, routing problem
    ... >>I try to route my internal IP 10.0.0.1 to this ISP ... >>access to internet on this modem. ... > gateway should not be the modem, ...
    (comp.os.linux.networking)
  • Re: Linux Gateway routing problem
    ... a route to 192.168.0.0/24 via gateway 10.0.0.1 on the speedtouch ... Now i can also ping from the pc with 192.168.0.22 to the modem. ...
    (comp.os.linux.networking)
  • Gateway M325X Review and Setup tips
    ... Gateway M325X Review and Setup Tips ... except for the sound card. ... Use "expert mode" installation from your disk set. ... Software modem. ...
    (Debian-User)
  • Re: VPN and remote gateway
    ... > It seems you use the wrong route add command. ... > when the VPN connection is established. ... > | using the remote network as my gateway. ...
    (microsoft.public.windows.server.sbs)