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From: Mart Frauenlob <mart.frauenlob@chello.at>
To: Jan Niggemann <jn@hz6.de>, Mart Frauenlob <mart.frauenlob@chello.at>
Cc: Pascal Hambourg <pascal@plouf.fr.eu.org>, netfilter@vger.kernel.org
Subject: Re: conntrack GRE behaves differently in 3.17 / 3.18
Date: Sat, 24 Jan 2015 16:28:42 +0100	[thread overview]
Message-ID: <54C3BA2A.9050201@chello.at> (raw)
In-Reply-To: <20150124084457.Horde.7lzdxvLxV9PON4YIA4wqmA5@htjn.suhail.uberspace.de>

On 24.01.2015 08:44, Jan Niggemann wrote:
> Zitat von Mart Frauenlob <mart.frauenlob@chello.at>:
>> Even if the modules are loaded, you need to allow the first gre packet
>> as you pointed out above.
> At least on my system it's sufficient that I load conntrack_pptp. With
> the following rules I can then create a pptp connection:
> -P INPUT DROP
> -P FORWARD DROP
> -P OUTPUT ACCEPT
> -A INPUT -i lo -j ACCEPT
> -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
> I do not need to explicitly allow any gre traffic for the pptp vpn to work.

Because it's accepted in the OUTPUT chain by the default policy?


  reply	other threads:[~2015-01-24 15:28 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-19 13:04 conntrack GRE behaves differently in 3.17 / 3.18 Jan Niggemann
2015-01-21  2:01 ` Eliezer Croitoru
2015-01-21 13:19   ` Jan Niggemann
2015-01-21 14:33     ` Mart Frauenlob
2015-01-21 19:03       ` Jan Niggemann
2015-01-21 23:21         ` Pascal Hambourg
2015-01-22  7:55           ` Jan Niggemann
2015-01-22 10:10             ` Mart Frauenlob
2015-01-22 15:40               ` Eliezer Croitoru
2015-01-22 18:51                 ` Neal Murphy
2015-01-22 20:33               ` Pascal Hambourg
2015-01-22 21:51                 ` Jan Niggemann
2015-01-22 22:28                   ` Neal Murphy
2015-01-23 23:20                 ` Mart Frauenlob
2015-01-24  7:44                   ` Jan Niggemann
2015-01-24 15:28                     ` Mart Frauenlob [this message]
2015-01-24 20:07                       ` Pascal Hambourg
     [not found] <1430142363.3948.12.camel@alum.wpi.edu>
2015-04-27 13:47 ` Lubomir Rintel

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