How can I route through a pc that is also using a router??

[Steve Bertrand]

> My workstation and the testmachine both belongs to the
> same subnet:
>
> Here are the details:
>
> workstation --> 10.10.8.110
> testmachine --> 10.10.8.111
>
> Gateway --> 10.10.8.254
>
> DNS ---> 202.90.128.3
>          202.90.158.101
>
> Proxy ---> 202.90.128.14   Port: 3128
>

First, enable bridging in your kernel, by adding:

options BRIDGE

Then add the following to /etc/sysctl.conf:

net.link.ether.bridge.enable=1
net.link.ether.bridge_ipfw=1
net.link.ether.bridge_cfg=xl0,xl1

...assuming xl0 and xl1 are your two physical interfaces.

If you do not have IPFW enabled on the test gateway, leave out the
line that says bridge_ipfw=1 in sysctl.conf.

You can't route through the test gateway, as it is on the same subnet
as everything else (both sides of it), so you must bridge it. Now you
are in a position to tap into the bitstream for ALL network traffic.

HTH,

Steve



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> --- Andrew <infofarmer at mail.ru> wrote:
>
>> Hi!
>>
>> Describe the test-machine, please. If both
>> workstations are on the same
>> subnet, you should probably configure the
>> test-machine as an
>> ip-forwarder or even as an ethernet-level bridge. If
>> your personal
>> workstation is on a different subnet, which is not
>> serviced by proxy or
>> dns, you should configure NAT on the test-machine.
>>
>> In general, there's little problem in cascading
>> gateway installations.
>>
>> Regards,
>> Andrew P.
>>
>>
>> > Good day!
>> >    I have two workstations at work, 1 my personal,
>> and
>> > the other, a test machine.
>> >
>> > My boss told me to configure a pcrouter, that is,
>> the
>> > testmachine and let my personal pc connect through
>> the
>> > internet through the testmachine:
>> >
>> > Here's the scenario:
>> >
>> > The testmachine already knows how to connect
>> through
>> > the outside world but, also through a gateway....
>> >
>> >
>>
> testmachine(10.10.8.111)--->gateway(10.10.8.254)---->[proxy]---->[DNS]--
>> -->internet
>> >
>> >
>> > And to let my pc connect to the internet through
>> the
>> > testmachine, I've set its default gateway to the
>> ip of
>> > the test machine.
>> >
>> >
>> > But it doesn't seem to work. When I tried to lauch
>> my
>> > browser, the error indicates that it cannot seem
>> to
>> > find its way to the proxy server.
>> >
>> > I've tried adding another line in my routing table
>> > like this:
>> >
>> > Destination              Gateway
>> > proxy(202.90.128.14)   testmachine(10.10.8.111)
>> >
>> > But it still won't work.
>> >
>> > Do you know what i've been missing here? I'm
>> thinking
>> > perhaps the test machine should connect to the
>> > internet directly without using a gateway
>> anymore..
>> >
>> > Any idea?
>>
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