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Date:      Tue, 5 Jul 2005 09:25:10 +0200
From:      bruce@nikkel.com
To:        Billy Newsom <smartweb@leadhill.net>
Cc:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   Re: How do I determine if ipv6 is enabled?
Message-ID:  <20050705072510.GA15446@nikkel.com>
In-Reply-To: <42CA2605.60403@leadhill.net>
References:  <42CA2605.60403@leadhill.net>

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On Tue, Jul 05, 2005 at 01:17:41AM -0500, Billy Newsom wrote:
> Is there a sysctl variable, or a quick method to determine if ipv6 is 
> enabled in the kernel?  e.g. How do I test for the prescence of ipv6 in 
> a script or at the commandline?

You could use ifconfig together with the loopback interface (or any 
other network interface):

ifconfig lo0 inet6

This will return true or false, depending on the ipv6 protocol support.
Simple for shell scripting.

Bruce Nikkel




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