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Date:      Tue, 24 Jul 2007 17:19:03 +0200
From:      "Patrick M. Hausen" <hausen@punkt.de>
To:        Pete French <petefrench@ticketswitch.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: ntpd on a NAT gateway seems to do nothing
Message-ID:  <20070724151902.GA97341@hugo10.ka.punkt.de>
In-Reply-To: <E1IDLrs-0001U0-Di@dilbert.ticketswitch.com>
References:  <200707241451.l6OEpq2O014634@lurza.secnetix.de> <E1IDLrs-0001U0-Di@dilbert.ticketswitch.com>

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Hi, all!

On Tue, Jul 24, 2007 at 04:00:08PM +0100, Pete French wrote:

> Yes, I discovered the UDPness of it last night and went
> through the rules again. I am pretty sure they are correct (or
> at least I cannot see anything wrong). I would assume that ntpdate
> also uses UDP - and using that I can see all these servers ?

I would try and run 

# tcpdump -n -i <NAT interface> host <NTP server>

in a separate window and compare the output when running 
ntpdate vs. starting ntpd.

HTH,

Patrick M. Hausen
Leiter Netzwerke und Sicherheit
-- 
punkt.de GmbH * Vorholzstr. 25 * 76137 Karlsruhe
Tel. 0721 9109 0 * Fax 0721 9109 100
info@punkt.de       http://www.punkt.de
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