From: "Neal P. Murphy" <neal.p.murphy@alum.wpi.edu>
To: Roger Price <roger@rogerprice.org>
Cc: Netfilter Users Mailing list <netfilter@vger.kernel.org>
Subject: Re: iptables: unknown protocol "!" specified
Date: Sat, 21 Nov 2015 15:57:53 -0500 [thread overview]
Message-ID: <20151121155753.0c7e1850@playground> (raw)
In-Reply-To: <alpine.LNX.2.00.1511211917160.3864@maria.rogerprice.org>
On Sat, 21 Nov 2015 21:48:47 +0100 (CET)
Roger Price <roger@rogerprice.org> wrote:
> Hi, I'm reading the iptables tutorial 1.2.2 by Oskar Andreasson at
> https://www.frozentux.net/iptables-tutorial/iptables-tutorial.html where I
> read:
>
> Match -p, --protocol
> Example iptables -A INPUT -p tcp
> Explanation ... This match can also be inversed with the !
> sign, so --protocol ! tcp would mean to match UDP and ICMP.
>
> So I tried it on openSUSE 13.2 and iptables replied:
>
> pinta:~ # iptables -A INPUT --protocol ! icmp
> iptables v1.4.21: unknown protocol "!" specified
> Try `iptables -h' or 'iptables --help' for more information.
>
> Escaping the ! as \! makes no difference. I am doing something wrong.
> Any suggestion as to what it is would be very welcome.
This was changed quite some time ago. The 'infix' notation was removed.
Try "! --protocol icmp".
N
next prev parent reply other threads:[~2015-11-21 20:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-21 20:48 iptables: unknown protocol "!" specified Roger Price
2015-11-21 20:57 ` Neal P. Murphy [this message]
2015-11-21 21:10 ` Roger Price
2015-11-22 8:18 ` Pascal Hambourg
2015-11-22 16:05 ` Roger Price
2015-11-22 17:20 ` Pascal Hambourg
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