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Re: linux as multi-port (subnet) router using Ubuntu 11.10 server

From Pascal Hambourg <boite-a-spam@plouf.fr.eu.org>
Newsgroups comp.os.linux.networking
Subject Re: linux as multi-port (subnet) router using Ubuntu 11.10 server
Date 2012-04-08 18:13 +0200
Organization Plouf !
Message-ID <jlsdeu$2s1d$1@saria.nerim.net> (permalink)
References <11134348.13.1333889415598.JavaMail.geo-discussion-forums@pbnu1> <jls6jb$50l$1@dont-email.me> <13863831.877.1333898763111.JavaMail.geo-discussion-forums@pbjk8> <20292715.691.1333900061222.JavaMail.geo-discussion-forums@pbsy3>

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Hello,

lincy a écrit :
>> First, I have 192.168.1.x subnet. so. Have one firewall in front of
>> Internet. It's 192.168.1.254, So, every machine in 192.168.1.x was
>> default gw point to 192.168.1.254
>>
>> At the new 4 ports machine. I set the default gw to 192.168.1.254
>> Then add static route, 192.168.2.x/192.168.3.x/192.168.4.x point to 192.168.1.1
>> This machine no any rule. Just forward enable.
> 
> Sorry, the static route to 192.168.1.1 was setting in firewall machine.

So subnet 192.168.1.x is special : packets from a host in this subnet to
 another subnet has to go through the firewall first and then
(hopefully) be forwarded to the Linux router.

Let's save it for later. What about communications between subnets other
that 192.168.1.x ?

Note : packet capture, e.g. with tcpdump, on the Linux router may help.

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Thread

linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 05:50 -0700
  Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-08 17:16 +0300
    Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 08:26 -0700
      Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 08:47 -0700
        Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 18:13 +0200
          Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 09:24 -0700
            Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 18:31 +0200
              Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 09:44 -0700
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 19:54 +0200
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 17:13 -0700
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-09 10:45 +0200
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-09 06:40 -0700
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-09 21:01 +0200
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-09 12:56 -0700
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-09 23:33 +0200
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-10 08:55 +0300
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-09 23:40 -0700
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-10 14:39 +0300
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-10 08:22 -0700
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-08 21:13 +0300
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 20:48 +0200
                Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 17:25 -0700

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