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From: "JUSTIN GERRY" <JGERRY@butchers.com>
To: JGERRY@butchers.com, netfilter@lists.netfilter.org
Subject: Re: Trying to setup two ethernet cards with two websites
Date: Thu, 02 Jan 2003 15:25:21 -0500	[thread overview]
Message-ID: <se1459fa.075@butchers.com> (raw)

To streamline the firewall I am writing, can I be safe to assume that:

CLASS_A="10.0.0.0/8" 
IF1="eth0"
IF2="eth1"

(For example, I will drop anything claiming to be from a Class A
Private Network on either interface)
iptables -A INPUT  -i $IF1 -s $CLASS_A -j DROP
iptables -A INPUT  -i $IF2 -s $CLASS_A -j DROP

can be written in one line as:
iptables -A INPUT -s $CLASS_A -j DROP

This way by not specifying the interface (as it can come from either
eth0 or eth1) it will stop completely drop any requests claiming to be
from a class A private network?

Many thanks,
Justin







             reply	other threads:[~2003-01-02 20:25 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-01-02 20:25 JUSTIN GERRY [this message]
2003-01-02 20:36 ` Trying to setup two ethernet cards with two websites Athanasius
2003-01-02 21:40 ` Rob Sterenborg
2003-01-03 12:23 ` Roy Sigurd Karlsbakk
  -- strict thread matches above, loose matches on Subject: below --
2003-01-02 14:49 JUSTIN GERRY
2003-01-02 15:21 ` Joel Newkirk
2003-01-03 12:23   ` Roy Sigurd Karlsbakk
2003-01-03 16:25     ` Joel Newkirk
2002-12-31 16:29 JUSTIN GERRY
2002-12-31 18:49 ` Roy Sigurd Karlsbakk

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