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Groups > comp.os.linux.misc > #7147

Re: Using a public IP-address in my home private network?

From Pascal Hambourg <boite-a-spam@plouf.fr.eu.org>
Newsgroups comp.os.linux.misc
Subject Re: Using a public IP-address in my home private network?
Date 2013-02-01 01:49 +0100
Organization Plouf !
Message-ID <kef3fq$2jff$1@saria.nerim.net> (permalink)
References (5 earlier) <hp4Ls.133203$2x2.105290@newsfe01.iad> <df2d1728-1622-42c0-bc81-fa42338e02f1@4g2000yqv.googlegroups.com> <ke314f$1i0c$1@saria.nerim.net> <794cc35e-7404-4064-b6ca-af6e3f245949@j2g2000yqj.googlegroups.com> <keb4h8$125$1@news.albasani.net>

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The Natural Philosopher a écrit :
> On 30/01/13 12:17, dspfun wrote:
>
>> C1 which has IP-address 192.168.12 will/should never ARP for IP-
>> address 50.50.50.51, even though they are on the same L2-network/
>> broadcast domain, right?!

Wrong. See Richard Kettlewell's reply.

Looks like you eventually understood, as you wrote :
"Only one physical interface in C1 (192.168.1.2) and one in C2 is
needed (50.50.50.51 and 192.168.1.3), even though both subnets are on
the same LAN.
C1 (192.168.1.2) will have IP-connectivity with C2 (50.50.50.51) as
long as routes are setup for that in C1 and C2."

> It wont get a response.

It will if the target has the proper return route.

> The only way to achieve two subnets on the same 
> physical network is to arrange  a machine with two (virtual?) interfaces 
> one on each subnet, and route between the two subnets with that, AND set 
> uyp routing on the machines that need to communicate to use that as the 
> route to the 'foreign' subnet.

Nonsense. It is much simpler than you think. All you need is add the
proper routes so that any node knows how to reach any subnet.

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Thread

Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-15 10:07 -0800
  Re: Using a public IP-address in my home private network? Bit Twister <BitTwister@mouse-potato.com> - 2013-01-15 18:30 +0000
  Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-15 18:37 +0000
    Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-16 00:59 -0800
      Re: Using a public IP-address in my home private network? Bit Twister <BitTwister@mouse-potato.com> - 2013-01-16 10:20 +0000
      Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-01-16 12:00 +0000
        Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-16 04:45 -0800
          Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-01-16 12:51 +0000
          Re: Using a public IP-address in my home private network? Bit Twister <BitTwister@mouse-potato.com> - 2013-01-16 13:11 +0000
            Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-16 06:28 -0800
            Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-01-16 14:37 +0000
              Re: Using a public IP-address in my home private network? Bit Twister <BitTwister@mouse-potato.com> - 2013-01-16 14:58 +0000
                Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-01-16 15:37 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-16 08:24 -0800
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-20 19:39 +0100
          Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-16 17:35 +0000
            Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-20 19:42 +0100
  Re: Using a public IP-address in my home private network? Whiskers <catwheezel@operamail.com> - 2013-01-15 22:30 +0000
    Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-16 02:41 +0000
      Re: Using a public IP-address in my home private network? Whiskers <catwheezel@operamail.com> - 2013-01-16 19:06 +0000
        Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-16 20:27 +0000
      Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-20 19:46 +0100
        Re: Using a public IP-address in my home private network? Moe Trin <ibuprofin@painkiller.example.tld.invalid> - 2013-01-20 22:07 +0000
          Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-21 05:31 +0000
            Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-21 00:17 -0800
              Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-21 17:33 +0000
              Re: Using a public IP-address in my home private network? Whiskers <catwheezel@operamail.com> - 2013-01-21 21:15 +0000
                Re: Using a public IP-address in my home private network? Bit Twister <BitTwister@mouse-potato.com> - 2013-01-21 21:56 +0000
                Re: Using a public IP-address in my home private network? Grant <omg@grrr.id.au> - 2013-01-22 10:11 +1100
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-21 23:42 +0000
                Re: Using a public IP-address in my home private network? Bit Twister <BitTwister@mouse-potato.com> - 2013-01-22 00:09 +0000
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-22 00:33 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-22 02:53 -0800
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-22 19:05 +0000
                Re: Using a public IP-address in my home private network? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2013-01-22 21:16 +0200
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-22 23:53 -0800
                Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-01-23 10:28 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-23 03:28 -0800
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-23 17:26 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-23 13:02 -0800
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-23 22:12 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-24 05:12 -0800
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-24 17:09 +0000
                Re: Using a public IP-address in my home private network? cipher <cipher@nospamforme.org> - 2013-01-31 23:28 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-01 00:33 +0000
                Re: Using a public IP-address in my home private network? James Moe <jimoeDESPAM@sohnen-moe.com> - 2013-01-23 09:56 -0700
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-23 17:25 +0000
                Re: Using a public IP-address in my home private network? Whiskers <catwheezel@operamail.com> - 2013-01-23 21:51 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-24 05:20 -0800
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-27 11:49 +0100
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-27 12:08 +0100
                Re: Using a public IP-address in my home private network? James Moe <jimoeDESPAM@sohnen-moe.com> - 2013-01-21 16:49 -0700
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-22 00:00 +0000
                Re: Using a public IP-address in my home private network? James Moe <jimoeDESPAM@sohnen-moe.com> - 2013-01-21 23:32 -0700
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-22 19:02 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-27 12:15 +0100
                Re: Using a public IP-address in my home private network? s_dubrovich@yahoo.com - 2013-01-22 09:08 -0800
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-22 19:07 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-01-22 19:38 +0000
                Re: Using a public IP-address in my home private network? s_dubrovich@yahoo.com - 2013-01-22 19:52 -0800
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-27 12:02 +0100
              Re: Using a public IP-address in my home private network? James Moe <jimoeDESPAM@sohnen-moe.com> - 2013-01-21 16:46 -0700
              Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-27 11:56 +0100
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-01-27 14:27 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-27 18:21 +0100
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-30 04:17 -0800
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-01-30 12:43 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-30 23:46 -0800
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-01-31 09:03 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-31 03:40 -0800
                Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-01-31 09:19 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-31 03:44 -0800
                Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-01-31 12:01 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-01 01:49 +0100
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-01-31 23:19 -0800
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-01 10:23 +0100
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-01 11:23 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-02 12:22 +0100
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-02 13:49 +0000
                Re: Using a public IP-address in my home private network? Jean-David Beyer <jeandavid8@verizon.net> - 2013-02-02 10:13 -0500
                [OT] Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-02 16:30 +0100
                Re: Using a public IP-address in my home private network? Whiskers <catwheezel@operamail.com> - 2013-02-02 17:48 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-02 18:16 +0000
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-02-02 20:11 +0000
                Re: Using a public IP-address in my home private network? John Hasler <jhasler@newsguy.com> - 2013-02-02 14:51 -0600
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-02 21:27 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-02 22:30 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-02 22:49 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-03 00:45 +0000
                Re: Using a public IP-address in my home private network? cipher <cipher@nospamforme.org> - 2013-02-03 00:52 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-03 11:01 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-03 13:15 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-03 13:20 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-03 15:08 +0000
                Re: Using a public IP-address in my home private network? cipher <cipher@nospamforme.org> - 2013-02-05 10:22 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-05 15:20 +0000
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-02-05 17:22 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-05 17:59 +0000
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-02-05 19:40 +0000
                Re: Using a public IP-address in my home private network? John Hasler <jhasler@newsguy.com> - 2013-02-05 14:17 -0600
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-06 01:22 +0000
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-02-06 02:11 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-06 03:21 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-05 21:19 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-06 00:21 +0000
                Re: Using a public IP-address in my home private network? Whiskers <catwheezel@operamail.com> - 2013-02-03 15:21 +0000
                Re: Using a public IP-address in my home private network? John Hasler <jhasler@newsguy.com> - 2013-02-02 16:24 -0600
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-02 22:46 +0000
                Re: Using a public IP-address in my home private network? John Hasler <jhasler@newsguy.com> - 2013-02-02 17:57 -0600
                Re: Using a public IP-address in my home private network? John Hasler <jhasler@newsguy.com> - 2013-02-02 13:07 -0600
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-02 16:24 +0100
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-01 11:20 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-02 12:19 +0100
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-02 13:48 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-02 16:17 +0100
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-02 15:47 +0000
                Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-02-02 16:26 +0000
                Re: Using a public IP-address in my home private network? dspfun <dspfun@hotmail.com> - 2013-02-04 03:19 -0800
                Re: Using a public IP-address in my home private network? unruh <unruh@invalid.ca> - 2013-02-04 17:03 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-04 19:51 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-06 01:14 +0100
                Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-02-06 09:07 +0000
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-06 13:58 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-07 01:09 +0100
                Re: Using a public IP-address in my home private network? The Natural Philosopher <tnp@invalid.invalid> - 2013-02-07 00:58 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-09 13:46 +0100
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-09 15:07 +0000
                Re: Using a public IP-address in my home private network? Richard Kettlewell <rjk@greenend.org.uk> - 2013-02-09 17:06 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-09 17:19 +0000
                ifconfig(8) vs. iproute Ivan Shmakov <oneingray@gmail.com> - 2013-02-09 17:18 +0000
                Re: Using a public IP-address in my home private network? Robert Riches <spamtrap42@jacob21819.net> - 2013-02-10 04:44 +0000
                Re: Using a public IP-address in my home private network? J G Miller <miller@yoyo.ORG> - 2013-02-10 14:14 +0000
                Re: Using a public IP-address in my home private network? cipher <cipher@nospamforme.org> - 2013-02-11 00:19 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-06 01:09 +0100
                Re: Using a public IP-address in my home private network? cipher <cipher@nospamforme.org> - 2013-02-04 21:46 +0000
                Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-02-02 17:30 +0100
            Re: Using a public IP-address in my home private network? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-01-25 01:44 +0100

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