Quoting Freddie Cash <fjwc...@gmail.com> (from Tue, 14 Feb 2012
08:26:54 -0800):

On Tue, Feb 14, 2012 at 7:43 AM, Ian Smith <smi...@nimnet.asn.au> wrote:
On Tue, 14 Feb 2012 2:37:55 +0100, Alexander Leidinger wrote:
 > 1 IPSTEALTH                      -> changes ipfw module only?

I don't think this is specific to ipfw.  From /sys/conf/NOTES:

# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
# packets without touching the TTL).  This can be useful to hide firewalls
# from traceroute and similar tools.

But can it be disabled once added to kernel?  It's no good as a default.

It's controllable via sysctl once it's compiled into the kernel.  If
it's not compiled into the kernel, then the sysctl doesn't exist.

Is it the following?
net.inet.ip.stealth=0

Bye,
Alexander.

--
BOFH excuse #152:

My pony-tail hit the on/off switch on the power strip

http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org       netchild @ FreeBSD.org  : PGP ID = 72077137

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