netdev - Re: Setting mac address of loopback device

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Date:	Thu, 23 Jan 2014 16:03:29 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Cong Wang <cwang@...pensource.com>,
	David Miller <davem@...emloft.net>, stephen@...workplumber.org,
	netdev <netdev@...r.kernel.org>
Subject: Re: Setting mac address of loopback device

On Thu, Jan 23, 2014 at 3:49 PM, Hannes Frederic Sowa
<hannes@...essinduktion.org> wrote:
> On Thu, Jan 23, 2014 at 11:53:49AM -0800, Cong Wang wrote:
>> BTW, how to change route to redirect _local_ traffic (that is packets
>> sending to itself) to a non-loopback device? I tried to modify local
>> route table, but have no luck to make it working.
>
> Have you seen the route_localnet sysctl? It should avoid the check for
> loopback addresses when building outgoing route.

I noticed it, the doc said:

This enables the use of 127/8 for local routing purposes.

but I don't care 127/8 traffic at all, only the traffic sending to itself
via a non-127/8 IP. :(

Or the doc is not accurate?
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