advanced routing packets from localhost

[Marti, Robert]

You'd have to use something like squid and force all your clients to  
point to your squid instance.  I have no experience with any of the  
router software for Linux nor do I know if any of them are available  
in rhel.

Sent from my iPhone

On Dec 10, 2009, at 5:12, "ESGLinux" <esggrupos at gmail.com> wrote:

> Hi All,
>
> I have discovered a way to route all the traffic generated for my  
> firewall
> to go the gateway I want.
> Here is what I have done:
> #ip rule add from 192.168.2.2/32 lookup gw1
>
> the ip 192.168.2.2 is the ip of the interface attached to eth1 and I  
> want
> that the traffic goes out to the interface eth2.
>
> The gw1 table has this:
> default via 192.168.3.1 dev eth2
>
> So with this rule all the traffic originated in the firewall that  
> has to go
> out to the default gw attached to eth1 goes to the gateway attached to
> eth2.
>
> The question now is how can I only route, for example, the web  
> traffic to
> this gw...
>
> Greetings,
>
> ESG
>
>
>
> 2009/12/9 ESGLinux <esggrupos at gmail.com>
>
>> Hi all,
>>
>> I have posted several questions in this list about advanced routing  
>> with
>> iproute2 to route the traffic as I want throug 2 different ADSL  
>> lines.
>>
>> I use packet marks to route them through  the selected gateway. All  
>> works
>> fine, but I have a problem that I can't resolve.
>>
>> I need to route the traffic originated on the server I use as
>> firewall/router but I don´t see how to do it because the routing d 
>> ecision is
>> made before the firewall does anything.
>> From this web:
>>
>> http://www.linuxtopia.org/Linux_Firewall_iptables/c951.html
>>
>> *Table 6-2. Source local host (our own machine)*
>> StepTableChainComment 1  Local process/application (i.e., server/ 
>> client
>> program)2  Routing decision. What source address to use, what  
>> outgoing
>> interface to use, and other necessary information that needs to be  
>> gathered.
>>
>> so all the traffic generated in the machine goes to the default  
>> gateway and
>> I cant´t control it,
>>
>> Any one knows how to solve this route problem?
>>
>> thanks in advance
>>
>> ESG
>>
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