Re: [gentoo-user] {OT} A simple routing problem

[Kevin Brandstatter <kjbrandstatter@gmail.com>]

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On 12/17/2012 08:00 PM, Nilesh Govindrajan wrote:
> On Tuesday 18 December 2012 09:24:41 AM IST, Kevin Brandstatter
> wrote:
>> On 12/17/2012 07:44 PM, Nilesh Govindrajan wrote:
>>> On Tuesday 18 December 2012 09:09:16 AM IST, Kevin
>>> Brandstatter wrote:
>>>> On 12/17/2012 07:26 PM, Nilesh Govindrajan wrote:
>>>>> Hi,
>>>>> 
>>>>> I'm stuck with a routing issue:
>>>>> 
>>>>> I have a DD-WRT router, which has one WAN port and four
>>>>> LAN ports with WiFi.
>>>>> 
>>>>> I have a fiber connection which is connected by dialing
>>>>> PPPoE using pppd on the router, so I have no choice but to
>>>>> connect the fiber connection on WAN port.
>>>>> 
>>>>> I have yet another (much slower) ADSL link, with it's own 
>>>>> router (LAN-only). I'm trying to connect the router to the 
>>>>> DD-WRT router's LAN port. I'm able to access the router,
>>>>> but routing through the gateway (the ADSL router) fails.
>>>>> 
>>>>> Here's a simple diagram:
>>>>> 
>>>>> The LAN network I'm using on DDWRT is 192.168.0.0, which
>>>>> is the LAN network for the internal side and WiFi.
>>>>> 
>>>>> The fiber connection is obviously public network.
>>>>> 
>>>>> The other ADSL connection can be configured to change
>>>>> subnet, it has a LAN side and WAN side.
>>>>> 
>>>>> How I can I route through the ADSL router without requiring
>>>>> a separate NIC/network for it?
>>>>> 
>>>> what exactly are you trying to route? traffic out to the
>>>> internet over the ADSL? or just trying to connect the
>>>> machines on that router to the fiber line and route all
>>>> traffic from both out on the fiber?
>>>> 
>>>> -Kevin
>>> 
>>> 
>>> Actually my fiber connection has a smaller limit than the ADSL 
>>> connection. I am trying to use the fiber connection for all 
>>> activities except some torrent downloading for which I want to
>>> use my ADSL connection. Once I'm able to route through the
>>> ADSL gateway, it would be easy for me to setup another ip on
>>> eth0 on my machine on which transmission could listen. All
>>> traffic on that ip would be routed through ADSL and otherwise
>>> the fiber.
>>> 
>>> -- Nilesh Govindarajan http://nileshgr.com
>>> 
>> well in that case if you know how to set it up so that the
>> dd-wrt router can see the ADSL gateway you can set a route on
>> your box to route traffic on a specific device to that gateway.
>> In fact, you might even be able to static route the torrent ports
>> to that gateway from dd-wrt
>> 
>> -Kevin
> 
> 
> I tried that. As the simplest test, I added this on ddwrt:
> 
> route add -host 8.8.8.8 gw 192.168.0.32
> 
> Where 192.168.0.32 is the private IP of my ADSL router. But when I
> say ping 8.8.8.8 from ddwrt, I don't get any response. Any idea why
> this happens?
> 
> -- Nilesh Govindarajan http://nileshgr.com
> 
is the ADSL configured to forward to the internet? how is the gateway
set up? it needs to be configured to route the outbound traffic to the
internet

- -Kevin
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