Re: Iptables not blocking DHCP/UDP correctly?

[Bernd Eckenfels <lists@lina.inka.de>]

On Thu, Oct 28, 2004 at 11:20:24PM +0200, Bart-Jan Vrielink wrote:
> On Thu, 2004-10-28 at 14:15 -0400, Larry Kelly wrote:
> > Help!  Either iptables is not blocking DHCP requests or my understanding of
> > how to configure iptables to block is incorrect (probably the later).  
> 
> >    dhcpd installed and running (listening on all interfaces).
> >    iptables configured to block incoming and outgoing udp traffic.

DHCP is not UDP, it is protocol "bootp"

> dhcpd operates directly on the interface, right in front of the
> netfilter firewall.

Nope.

Greetings
Bernd
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