From: "Sascha Reissner" <sascha.reissner@toxicnet.de>
To: "Robert P. J. Day" <rpjday@mindspring.com>,
netfilter mailing list <netfilter@lists.netfilter.org>
Subject: Re: curious about address specification and port specification
Date: Thu, 10 Oct 2002 06:20:18 +0200 [thread overview]
Message-ID: <000401c27014$5783fdc0$026410ac@honor> (raw)
In-Reply-To: Pine.LNX.4.44.0210091755001.17555-100000@localhost.localdomain
From: "Robert P. J. Day" <rpjday@mindspring.com>
> just the other day, i was at a local LUG meeting and a guy was giving a
> quick tutorial on iptables and displayed a sample rule file that contained
> the rule:
>
> iptables -A FORWARD --destination 172.16.0.2 --destination-port 25 \
> --jump ACCEPT
>
> doesn't this represent an example of what i was asking about? a
> reference to a port with no reference to protocol.
well, a flipchart, whiteboard or video beamer presentation wont spit out any
error messages...
a real computer will do, and it will tell you that --destination-port is an
invalid parameter in that case..
because you dont specify any protocol ;)
iptables v1.2.6a: Unknown arg `--destination-port'
Try `iptables -h' or 'iptables --help' for more information.
next prev parent reply other threads:[~2002-10-10 4:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-09 11:14 curious about address specification and port specification Robert P. J. Day
2002-10-09 21:13 ` Antony Stone
2002-10-09 21:57 ` Robert P. J. Day
2002-10-10 4:20 ` Sascha Reissner [this message]
2002-10-10 9:16 ` Robert P. J. Day
2002-10-10 6:30 ` Antony Stone
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