Re: Ping and LAN Problem

Derek Broughton wrote:

Marius Gedminas wrote:

On Mon, Aug 13, 2007 at 03:31:06PM -0300, Derek Broughton wrote:
Marius Gedminas wrote:

On Mon, Aug 13, 2007 at 08:59:42PM +0530, das ??? wrote:
<<<
dd@mahammad:~$ ping 192.168.0.2
PING 192.168.0.2 (192.168.0.2) 56(84) bytes of data.
ping: sendmsg: Operation not permitted

You get this message when your firewall blocks an outgoing
packet.

I don't think so. You get that message when there is no route to
the destination.

Surely that would be "No route to host" rather than "Operation not
permitted"?

I don't remember the last time I saw a "no route to host message" -
I'm not certain it's still used. I almost (but not quite) feel like
emptying my routing table to test it now. But since I'm network
connected to the linux box, that seems like not such a good idea :-)

Just saw that error yesterday as a matter of fact, after a machine
defined in /etc/hosts failed to boot up properly (mucking around with
grub) and I tried to ssh into it by name.

I think the operation not permitted message is generated locally when
certain ICMP type 3 packets are dropped, so that probably is a firewall
problem.

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