From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gao feng <gaofeng@cn.fujitsu.com>
Subject: Re: netlink NETLINK_ROUTE  failure & Can the kernel really handle
 IPv6 properly
Date: Mon, 6 Oct 2014 11:35:46 +0800
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References: <542C63FE.9080807@emagii.com>
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To: Ulf Samuelsson <netdev@emagii.com>,
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On 10/02/2014 04:28 AM, Ulf Samuelsson wrote:
> 
>     nls = netlink_kernel_create( &init_net, NETLINK_ROUTE, 0, my_rcv, NULL, THIS_MODULE);

Kernel already creates NETLINK_ROUTE type netlink,
you can not create another kernel side NETLINK_ROUTE netlink socket.