From: Hannes Frederic Sowa <hannes@stressinduktion.org>
To: chenweilong <chenweilong@huawei.com>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] ipv6: don't call addrconf_dst_alloc again when enable lo
Date: Thu, 2 Jan 2014 09:32:00 +0100 [thread overview]
Message-ID: <20140102083200.GD22494@order.stressinduktion.org> (raw)
In-Reply-To: <52C51FB4.3000008@huawei.com>
On Thu, Jan 02, 2014 at 04:13:40PM +0800, chenweilong wrote:
> Can you give more explanation about this please?
If you look at the routing table for local addresses (ip -6 route list table
local), you see that every address which is RTF_LOCAL (and thus passes up the
packets via ip6_input) has as its device the loopback device.
In case you shutdown loopback you clear all those routes, thus incoming
packets won't find the corresponding rt6_info which directs the packets to
passed up the stack.
I guess it was done to satisfy the scoped architecture of IPv6.
Does this help you?
next prev parent reply other threads:[~2014-01-02 8:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-16 3:14 [PATCH] ipv6: don't call addrconf_dst_alloc again when enable lo Gao feng
2013-06-20 6:05 ` David Miller
2013-12-31 3:57 ` Hannes Frederic Sowa
2014-01-02 5:48 ` chenweilong
2014-01-02 6:03 ` Hannes Frederic Sowa
2014-01-02 8:13 ` chenweilong
2014-01-02 8:32 ` Hannes Frederic Sowa [this message]
2014-01-02 9:08 ` chenweilong
2014-01-02 6:54 ` Hannes Frederic Sowa
2014-01-02 7:58 ` chenweilong
2014-01-02 8:23 ` Hannes Frederic Sowa
2014-01-02 9:33 ` chenweilong
2014-01-03 6:53 ` Hannes Frederic Sowa
2014-01-08 7:50 ` Gao feng
2014-01-08 8:05 ` Hannes Frederic Sowa
2014-01-08 8:42 ` Gao feng
2014-01-08 8:55 ` Hannes Frederic Sowa
2014-01-17 2:02 ` chenweilong
2014-01-17 4:09 ` Hannes Frederic Sowa
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