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Groups > comp.os.linux.misc > #7152

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 10:23 +0100
Organization Plouf !
Message-ID <keg1j8$2tre$1@saria.nerim.net> (permalink)
References (7 earlier) <ke314f$1i0c$1@saria.nerim.net> <794cc35e-7404-4064-b6ca-af6e3f245949@j2g2000yqj.googlegroups.com> <keb4h8$125$1@news.albasani.net> <kef3fq$2jff$1@saria.nerim.net> <ce4f1399-affd-44c7-9e0c-cd8ece734da8@n2g2000yqg.googlegroups.com>

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dspfun a écrit :
> 
> So basically, C1 (192.168.1.2/24) will send an arp request for an IP-
> address in any subnet/network (for example 50.50.50.51), as long as it
> has a route to it.

A direct route, yes. If the route uses a gateway, then the host will
send an ARP request for the gateway address instead.

General rule : the host sends an ARP request for the next hop address,
whether it is the destination or an intermediate router.

> C2 (50.50.50.51) will then send an arp reply to an arp request
> (requesting a MAC-address for 50.50.50.51) from C1 (192.168.1.2).

If it has a direct route to the sender address on the receiving
interface, I guess.

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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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