Changing packets ttl's

From: GiZmen (gizmen_at_zion.vsip.pl)
Date: 04/27/05

  • Next message: Neo-Vortex: "Re: Changing packets ttl's" 
    Date: Wed, 27 Apr 2005 00:52:30 +0200
To: freebsd-net@freebsd.org

    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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  • Next message: Neo-Vortex: "Re: Changing packets ttl's"

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    • Re: Changing packets ttls
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