From owner-freebsd-net@FreeBSD.ORG  Tue Apr 26 22:56:51 2005
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Date: Wed, 27 Apr 2005 08:56:47 +1000 (EST)
From: Neo-Vortex <root@Neo-Vortex.net>
To: GiZmen <gizmen@zion.vsip.pl>
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cc: freebsd-net@freebsd.org
Subject: Re: Changing packets ttl's
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Do you mean the sysctl net.inet.ip.ttl?

~Neo-Vortex

On Wed, 27 Apr 2005, GiZmen wrote:

> Hi,
>
> I am searching how to change packet ttl. I am runing a freebsd 5.4
> gateway and i would like to change ttl of any packets that are
> going out from my internal interface. My goal is to change ttl to 1
> so the last hop is the next host in my internal network.
> I want to prevent people to do small NAT in my network. I know that
> changing ttl's is easy to bypass but not for normal user :)
> I am using pf as my packet filter but there is no option to change
> ttls to smaler value. Please help me with this problem.
> Big thanks
>
> --
> Best Regards:
> 		GiZmen
>
> UNIX is user-friendly; it's just picky about its friends
> UNIX is simple; it just takes a genius to understand its simplicity
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