From mboxrd@z Thu Jan  1 00:00:00 1970
From: <tt.gustavsson@bredband.net>
To: <9fans@cse.psu.edu>
Date: Thu, 17 Aug 2006 10:55:30 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Message-Id: <20060817085530.KVHU5813.mxfep01.bredband.com@mxfep01>
Subject: [9fans] IP stack nat
Topicbox-Message-UUID: a193c602-ead1-11e9-9d60-3106f5b1d025


Good day

My first steps to building a NAT/NAPT 
I am trying to understand how the plan9 ip-stack works.

This is what I am trying to do:

I have three ethernet cards in my machine:

Card1:  Local address for plan 9 services

Card 2: local gateway for the boxes that dont use plan9

Card 3: Connection to the internet


Each ethernet interface will have a separate ip-stack

Doing like this I hope to separate plan9 services from the gateway,
to make my environment fairly secure.

Plan9 will not use the gateway interface, I will just import the internet interface when I want to access the outside world from the 
plan9 machines.

If I open the data file in the gateway stack /net.gw/ipifc/0/data
from my initial NAT program,
it seems that I don't get any packets on that interface when 
I try to access some outside ip-address from the non-plan9 machines.


I tried to set up a packet interface on /net.gw/ipifc/1 , 
and added iproutinng to this stack, and when I try to ping this new 
interface, from a non-plan9 machine with the gateway set /net.gw/ipifc/0

I get ping reply, but the /net.gw/1/data is also silent.

I might have totally misunderstood something here?

Any suggestions


btw: When I send mail to this list i get the signature <my name> at bredband.net, and gets a lot of spam, is there a way to hide this information?


Thanks

/Tony, Sweden










From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <126a2f7d0608170935g18adf75aka3de9363a88fe5fa@mail.gmail.com>
Date: Thu, 17 Aug 2006 21:35:55 +0500
From: "Sergey Zhilkin" <szhilkin@gmail.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] IP stack nat
In-Reply-To: <20060817085530.KVHU5813.mxfep01.bredband.com@mxfep01>
MIME-Version: 1.0
Content-Type: multipart/alternative; 
	boundary="----=_Part_134690_8871598.1155832555489"
References: <20060817085530.KVHU5813.mxfep01.bredband.com@mxfep01>
Topicbox-Message-UUID: a221af4e-ead1-11e9-9d60-3106f5b1d025

------=_Part_134690_8871598.1155832555489
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

http://plan9.bell-labs.com/magic/man2html/3/ip
Search ipmux


>
>
>
>
>
>
>
>
>

------=_Part_134690_8871598.1155832555489
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

<a href="http://plan9.bell-labs.com/magic/man2html/3/ip">http://plan9.bell-labs.com/magic/man2html/3/ip</a><br>
Search ipmux <br><br>
<div>
<div style="text-align: left;"><span class="gmail_quote"></span></div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
  <div style="text-align: left;"><br>
  </div>
<br><br><br><br><br><br><br><br></blockquote></div><br>

------=_Part_134690_8871598.1155832555489--