From mboxrd@z Thu Jan  1 00:00:00 1970
From: Cong Wang <cwang@twopensource.com>
Subject: Re: [PATCH] return the right retcode when add a unreachable route
Date: Tue, 8 Jul 2014 11:49:02 -0700
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References: <1404644511-22112-1-git-send-email-lucien.xin@gmail.com>
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Cc: network dev <netdev@vger.kernel.org>
To: Xin Long <lucien.xin@gmail.com>
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On Sun, Jul 6, 2014 at 4:01 AM, Xin Long <lucien.xin@gmail.com> wrote:
> when add a route like this:
> ip route add 74.125.31.199 dev eth0 via 1.2.3.4 ,
> 1.2.3.4 is a unreachable ip, it return -ENETUNREACH, it is ok.
> but before that I add a rule:
> ip rule add fwmark 1 lookup 101 ,
> then add that route , it will return -ESRCH.
>

This would potentially break user-space applications.