methods did not work.  "accept net fw icmp 8" was already in there, and I added 
"accept loc fw icmp 8" but ping still does not work.

I noticed I got this when I did "shorewall restart":

Processing /etc/shorewall/stop ...
   WARNING: DISABLE_IPV6=Yes in shorewall.conf but this system does not appear 
to have ip6tables
IP Forwarding Enabled
Processing /etc/shorewall/stopped ...
Terminated

mean anything?
============================================================
From: Derek Jennings <[EMAIL PROTECTED]>
Date: 2005/06/07 Tue PM 06:58:42 EDT
To: [email protected]
Subject: Re: [newbie] iptables and network programming

On Tuesday 07 June 2005 21:57, [EMAIL PROTECTED] wrote:
> I'm using LE2005 on a PC, KDE.
>
> I'm trying to learn some network programming, but I think I'm running up
> against firewalls.  For example, I am not able to CLI ping my own ip
> address, and when running my network code, connect() to echo port on my ip
> address is refused.
>
> On the [now questionable] advice from folks in #mandriva, I did a iptables
> --flush.  And promptly lost all network connectivity.  But that must only
> have flushed a dynamic instance of the iptables rules, or the rules get
> regenerated by script on startup, because they were all there again the
> next time I rebooted (luckily).
>
> So my questions are:
>
> 1.  How can I access/configure whatever built-in security settings/firewall
> come with Mandriva 10.2?  I sincerely hope I do not have to go explicitly
> mucking about with those iptables rules.
>
Mandriva uses shorewall to configure iptables. There is no need for you to use 
iptables directly. See www.shorewall.net for documentation. There is a 
*simple* GUI in Mandriva Control Centre to manage shorewall. Editing the 
shorewall files by hand gives better control and they are well documented.


> 2.  How can I temporarily enable specific ip addresses (e.g. my own)/ports
> for pinging, connect()'s, and other Sockets API operations?
Shorewall by default disables ping. To enable it edit /etc/shorewall/rules and 
add the line
ACCEPT  net     fw      icmp    8  to allow ping from the internet or
ACCEPT  loc     fw      icmp    8 to allow ping from the local network

After editing the file run
shorewall restart
from a root terminal

HTH

derek

-- 
www.jennings.homelinux.net
http://twiki.mdklinuxfaq.org


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