Re: Changing packets ttl's

From: Neo-Vortex (root_at_Neo-Vortex.net)
Date: 04/27/05

  • Next message: Vlad GALU: "Re: Changing packets ttl's" 
    Date: Wed, 27 Apr 2005 08:56:47 +1000 (EST)
To: GiZmen <gizmen@zion.vsip.pl>

    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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