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From: Grant Taylor <gtaylor@riverviewtech.net>
To: Mail List - Netfilter <netfilter@vger.kernel.org>
Subject: Re: allowing packets from dynamic-dns IP
Date: Sat, 26 Apr 2008 14:42:39 -0500	[thread overview]
Message-ID: <481385AF.2020309@riverviewtech.net> (raw)
In-Reply-To: <alpine.LNX.1.10.0804262127180.20150@fbirervta.pbzchgretzou.qr>

On 4/26/2008 2:29 PM, Jan Engelhardt wrote:
> It is the same -- the dynamic system runs a custom script in ifup 
> that notifies the static one. Can be portknocking, or a http, or a 
> netcat.

Presuming that the dynamic system is a Linux box, sure.  However there 
are a LOT of devices that can utilize dynamic DNS that do not have the 
capability (through the provided interface(s)) to make those types of 
changes.

> So why not just set up an ipsec tunnel... :^)

Not everything can do an IPSec tunnel, nor will all devices in between 
play well with IPSec tunnels.  We don't know enough about the endpoints 
and / or what is in between to know if any thing like this will work. 
If this will work, this may indeed be better.



Grant. . . .

  reply	other threads:[~2008-04-26 19:42 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-26 16:34 allowing packets from dynamic-dns IP Yakov Lerner
2008-04-26 18:16 ` Jan Engelhardt
2008-04-26 19:25   ` Grant Taylor
2008-04-26 19:29     ` Jan Engelhardt
2008-04-26 19:42       ` Grant Taylor [this message]
2008-04-26 20:02 ` Yakov Lerner
2008-04-26 22:07   ` Josh Cepek
2008-04-26 22:23     ` Jan Engelhardt

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