From: "Jason Opperisano" <Jopperisano@alphanumeric.com>
To: netfilter@lists.netfilter.org
Subject: RE: ESP does not hit the nat table
Date: Sun, 1 Aug 2004 15:03:48 -0400 [thread overview]
Message-ID: <D5C9032B2B09C64EA2409D6214E91AC9051218@asimail2.alphanumeric.com> (raw)
> iptables -t nat -j DROP
>
> Will not block ESP traffic.
It's not a valid command, either. In addition to specifying the table (-t nat) to act upon, you also need to specify a command and a chain to operate on; i.e.,
iptables -t nat -A PREROUTING -j DROP
Not that I'm recommending the above rule, but it'll sure drop some traffic...
> On the other hand
>
> iptables -t filter -p 50 -j DROP
>
> will block ESP traffic.
Nope...
iptables -A FORWARD -p 50 -j DROP
Or
iptables -A INPUT -p 50 -j DROP
Or
iptables -A OUTPUT -p 50 -j DROP
("-t filter" is assumed if no "-t" is specified)
<OT>
Where is the new-found obsession with dropping packets in the NAT table coming from?
</OT>
-j
next reply other threads:[~2004-08-01 19:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-01 19:03 Jason Opperisano [this message]
2004-08-01 22:28 ` [OT] Was: ESP does not hit the nat table Antony Stone
2004-08-02 8:03 ` Jozsef Kadlecsik
-- strict thread matches above, loose matches on Subject: below --
2004-08-01 15:35 Kashyap Ashwin
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