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Date:	Tue, 03 Jan 2012 15:11:29 -0500 (EST)
From:	David Miller <>
Subject: Re: Why is gre0 auto-created, and can we fix it?

From: Ben Greear <>
Date: Tue, 03 Jan 2012 12:03:56 -0800

> On 01/03/2012 11:59 AM, David Miller wrote:
>> From: Ben Greear<>
>> Date: Tue, 03 Jan 2012 11:49:50 -0800
>>> As far as I can tell, no other interfaces are auto-created
>>> in this manner.
>> ip6tnl0 and sit0 do it too, just grep for alloc_netdev() under
>> net/{ipv4,ipv6}/
> So, no changing the behaviour?

Probably too risky.  I think the exposure is on the order of ~16

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