* Blocking broadcasts
@ 2002-07-10 19:36 Faruk Grozdanic
2002-07-10 19:40 ` Antony Stone
0 siblings, 1 reply; 2+ messages in thread
From: Faruk Grozdanic @ 2002-07-10 19:36 UTC (permalink / raw)
To: netfilter
Hello,
I am trying to block broadcast IP traffic, that is IP traffic that has
255.255.255.255 in the destination feild. I pushed a rule:
iptables -I FORWARD -i eth4 -d 255.255.255.255 -j DROP
and it did not filter these out.
Am I doing something wrong here, or is there a different way of
accomplishing this.
Thanks
Faruk
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Blocking broadcasts
2002-07-10 19:36 Blocking broadcasts Faruk Grozdanic
@ 2002-07-10 19:40 ` Antony Stone
0 siblings, 0 replies; 2+ messages in thread
From: Antony Stone @ 2002-07-10 19:40 UTC (permalink / raw)
To: netfilter
On Wednesday 10 July 2002 8:36 pm, Faruk Grozdanic wrote:
> Hello,
>
> I am trying to block broadcast IP traffic, that is IP traffic that has
> 255.255.255.255 in the destination feild. I pushed a rule:
>
> iptables -I FORWARD -i eth4 -d 255.255.255.255 -j DROP
>
> and it did not filter these out.
Broadcasts do not go through routers, therefore they will enter the INPUT
table of your firewall, not the FORWARD table.
Antony.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2002-07-10 19:36 Blocking broadcasts Faruk Grozdanic
2002-07-10 19:40 ` Antony Stone
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