From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rene Gallati Date: Mon, 19 Jul 2004 12:52:01 +0000 Subject: Re: [LARTC] block ethernet IPv4 traffic Message-Id: <40FBC3F1.9080105@draxinusom.ch> List-Id: References: <39685.217.79.71.234.1090239494.squirrel@217.79.71.234> In-Reply-To: <39685.217.79.71.234.1090239494.squirrel@217.79.71.234> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: lartc@vger.kernel.org Anton Glinkov wrote: > On Mon, July 19, 2004 15:25, Ed Wildgoose said: >=20 >> >>>the bridge thing is not possible.. the network is too big.. 300 >>>machines.. >>>with over 30 switches (only one of them is manageable) :( >>>Basically I want to deny ethertype 0800 (IPv4) packets for that LAN. >>>The only solution I thought of was to have a linux machine in this LAN >>>that has all the possible IP addresses set on its interface. >>> >>> >> >>Look, we can't help you until you explain the problem >> >>WHY is it not possible to have a bridge? This only requires two network >>cards? >=20 >=20 > I want to block the traffic between _ANY_ 2 of the machines in the networ= k. How about giving them a netmask of /32 instead of /24 (or whatever you=20 have) so that they only see themselves in the same network and then=20 giving them a static route to the default gw (since it is outside of the=20 /32). Then you can block all inter-client traffic at that single default=20 gateway (or one hop "in front" of it, seen from the clients) --=20 C U - -- ---- ----- -----/\/ Ren=E9 Gallati \/\---- ----- --- -- - _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/