ping : sent to: operation not permitted

[Darrell Dieringer]

The original problem happens when the default policy on the OUTPUT chain is
"DROP".  The ping packets from the firewall can't get out to the other
computer.

-----Original Message-----
From: netfilter-admin@lists.samba.org
[mailto:netfilter-admin@lists.samba.org]On Behalf Of Eric Junker
Sent: Thursday, July 12, 2001 9:35 AM
To: Sudaryanto; netfilter@lists.samba.org
Subject: Re: ping : sent to: operation not permitted


I had similar problem when using nmap. To solve it I just did a "rmmod
iptables_nat" and then it worked.

This is an excerpt from
http://security-archive.merton.ox.ac.uk/bugtraq-200103/0282.html

"Obviously, the netfilter nat code breaks nmap while using the -O flag or
using decoy options. The (sendto in send_tcp_raw: sendto....) error is
a symptom of this. It also breaks other packet shaping utilities such
as hping, etc., so this does not appear to be an nmap problem."

Eric

On Wednesday 11 July 2001 11:43 pm, Sudaryanto wrote:
> Dear all
>
> im installed iptables in Redhat linux.
> after down a can't connect to other computer;
>
> if im ping to other computer uppear up.
>
> ping : send to : operation not permitted