Date: Tue, 24 Jul 2007 11:28:03 -0700 From: Chuck Swiger <cswiger@mac.com> To: Samit <janasamit@wlink.com.np> Cc: freebsd-isp@freebsd.org Subject: Re: changing ttl size of forwarding packet Message-ID: <B3283DBE-EB4C-4281-8658-8F81E5C94775@mac.com> In-Reply-To: <46A63AF2.40405@wlink.com.np> References: <46A63AF2.40405@wlink.com.np>
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On Jul 24, 2007, at 10:46 AM, Samit wrote: > iptables can easily do it via mangle table. Is there any way using > ipfw2 > to change the ttl size of the forwarding packets? The size of the TTL field is fixed by the IP protocol to 1 byte; perhaps you are looking for the IPFW transparent firewall option, which prevents it from decrementing the TTL in order to make a "hidden" firewall...? -- -Chuck
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