From owner-freebsd-jail@freebsd.org  Mon Sep  5 00:21:51 2016
Return-Path: <owner-freebsd-jail@freebsd.org>
Delivered-To: freebsd-jail@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9F643B72C48
 for <freebsd-jail@mailman.ysv.freebsd.org>;
 Mon,  5 Sep 2016 00:21:51 +0000 (UTC)
 (envelope-from dewaynegeraghty@gmail.com)
Received: from mail-it0-x232.google.com (mail-it0-x232.google.com
 [IPv6:2607:f8b0:4001:c0b::232])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 680F9A32
 for <freebsd-jail@freebsd.org>; Mon,  5 Sep 2016 00:21:51 +0000 (UTC)
 (envelope-from dewaynegeraghty@gmail.com)
Received: by mail-it0-x232.google.com with SMTP id e124so124503503ith.0
 for <freebsd-jail@freebsd.org>; Sun, 04 Sep 2016 17:21:51 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:in-reply-to:references:from:date:message-id:subject:to
 :cc; bh=dvbldtBeC1gYyZUwqA9lsAtXJd3TJreO3MDizSWawz4=;
 b=wVYfSrMNQXSU7tlUoJxaGVQVwq79JdOeGVS71H0FT6xDXieUWRlvQqEo7TGWODSh2Y
 A1NAlYj+HKX+zg9o4UOP/b1+pNiiL1bE3FsI9GLM+EGWCbsr7diPwijt+uZrsv3LGazh
 4MVrnDqmhhKgHr/+dj/h+uJeC3JE8TggM1FmTWzuA9mdAaa4ZgYX4pYcLLm5HHvssvWO
 N7DTqBzmPF0gFdU53/gHtcPpi2gT9cQ2Fw2mL9FZO2xHIksju2KkFnXM+9V/tWe+SaPG
 YBLDyxcrC1VDp1Xc1eTpDCxvnl0OIyfRWiTxKis/IHNUElDhnkcPFPklmOyM0MFZg9/F
 nPDg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20130820;
 h=x-gm-message-state:mime-version:in-reply-to:references:from:date
 :message-id:subject:to:cc;
 bh=dvbldtBeC1gYyZUwqA9lsAtXJd3TJreO3MDizSWawz4=;
 b=mrB9v+pKX/eymSA38BufP5/3nXj0xIsWiF6C23PmOgrlB2y2irDdhFoXc0uUy9q1ee
 aDJt1i93nAVkZWiIeUuSgeC+gkHkbV63It6mghBT9e9qlwJ5ri6kdQ1jfXX21guzcVsh
 GrAzuWpsapZHK2cnnWZKN//OhALEbxW/c/OSbMkF6S/Tw7uRe65NI+i+gdFV1r0SlJsz
 MpNl9OIZ1W0fURLAhPfzJ+XXPD9xqv7r0rOrsj+m8OGdKAM0THaTFwEO9PXO99Fl16av
 TRpiaFuxwstYnApix9JDebFrxcDX27+9icpXnRcM0wyAZYQGSjprpe5Q/CUaPcmSKx4y
 zOFQ==
X-Gm-Message-State: AE9vXwMwsNUiy/S+6hFm1Dt6edHrU12CjTHoHzMnHFe30QzhTiuiKZeFTsscM/nMh3UVuHm3/ILyay57gTQhSA==
X-Received: by 10.36.152.11 with SMTP id n11mr20649553itd.18.1473034910829;
 Sun, 04 Sep 2016 17:21:50 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.79.104.133 with HTTP; Sun, 4 Sep 2016 17:21:20 -0700 (PDT)
In-Reply-To: <9fd404a3-f1cc-4510-1d38-5ca8dc85f5d3@gjunka.com>
References: <872dfbe1-3f39-bf5f-44b2-611bd92a1210@gjunka.com>
 <4fa37d2e14665ff5a00548626e55142f@gritton.org>
 <F9734DA1-D3BE-46C8-87C7-91C4C4B653F1@Lodge.me.uk>
 <9fd404a3-f1cc-4510-1d38-5ca8dc85f5d3@gjunka.com>
From: Dewayne Geraghty <dewaynegeraghty@gmail.com>
Date: Mon, 5 Sep 2016 10:21:20 +1000
Message-ID: <CAGnMC6qkc3sHMoPVdAWjJrggR9v68wykcuPszBNm6syxdcirHQ@mail.gmail.com>
Subject: Re: Changing jail's IP automatically
To: Grzegorz Junka <list1@gjunka.com>
Cc: "freebsd-jail@freebsd.org" <freebsd-jail@freebsd.org>
Content-Type: text/plain; charset=UTF-8
X-Content-Filtered-By: Mailman/MimeDel 2.1.23
X-BeenThere: freebsd-jail@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: "Discussion about FreeBSD jail\(8\)" <freebsd-jail.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-jail>,
 <mailto:freebsd-jail-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-jail/>
List-Post: <mailto:freebsd-jail@freebsd.org>
List-Help: <mailto:freebsd-jail-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-jail>,
 <mailto:freebsd-jail-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 05 Sep 2016 00:21:51 -0000

No it doesn't require vnet.  I've used this technique for years on ipfw
using kernel NAT.