On Sat, Aug 03, 2002 at 09:06:59AM +0200, Aad van Lieburg wrote:
> Hi,
> I read about a bug in RH7.2 iptables, due to debugging code, with NAT /
> mangle.
> Now I'm not sure about this: Is this bug still there in RH7.3?
> 
>From www.netfilter.org homepage:

* This bug has not yet been fixed in any kernel. To work around this bug, either apply 
the patch provided with the advisory, or use the rule-based workaround as indicated in 
the advisory.

It seems then that the bug is still in official versions of the linux kernel.

The netfilter team have provided a kernel patch but it has not been accepted
in the official kernel. There is also a workaround. Info on both can be found
at the netfilter homepage.

Just found the following at: 

 http://rhn.redhat.com/errata/RHSA-2002-086.html

 "Unfortunately, this problem currently has no clean fix, but while
 a clean fix is being worked on, there is a sufficient workaround:

 Filter out untracked local icmp packets using the following command:
 iptables -A OUTPUT -m state -p icmp --state INVALID -j DROP"


t.irvine



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