[Centos] Messing around with iptables

Dag Wieers dag at wieers.com
Thu Aug 12 16:19:24 UTC 2004

On Thu, 12 Aug 2004, scty Library wrote:

> I am messing around with iptables, trying to learn how
> it works so that I can build my self a router/firewall
> and mabey a VPN. Anyway I tried to use a command on my
> Desktop CentOS3 machine.
> "iptables -A INPUT -s -p icmp -j DROP"
> now the command seems to have went through because I
> didn't get any errors, but when I go to ping
> I am getting a response and my packet loss is 0%. It
> should be 100% packet loss.
> Can anyone tell me what I am doing wrong.  I am not
> trying  to do anything yet, just want to learn by
> exploring.


	iptables -A INPUT -d -p icmp -j DROP

Since you're pinging, that's the destination (-d) address, not 
the source (-s) address.

--   dag wieers,  dag at wieers.com,  http://dag.wieers.com/   --
[Any errors in spelling, tact or fact are transmission errors]

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