netdev - Re: [PATCH] net: ipv6: Make address flushing on ifdown optional

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Message-ID: <54DCDB80.9090601@6wind.com>
Date:	Thu, 12 Feb 2015 17:57:36 +0100
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	David Ahern <dsahern@...il.com>, netdev@...r.kernel.org
CC:	Hannes Frederic Sowa <hannes@...hat.com>
Subject: Re: [PATCH] net: ipv6: Make address flushing on ifdown optional -
 v3

Le 12/02/2015 05:27, David Ahern a écrit :
> Currently, all ipv6 addresses are flushed when the interface is configured
> down, even static address:
>
[snip]
>
> [root@f20 ~]# echo 0 > /proc/sys/net/ipv6/conf/eth1/flush_addr_on_down
> [root@f20 ~]# ip -6 addr add dev eth1 2000:11:1:1::1/64
> [root@f20 ~]# ip addr show dev eth1
> 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
>      link/ether 02:04:11:22:33:01 brd ff:ff:ff:ff:ff:ff
>      inet6 2000:11:1:1::1/64 scope global tentative
>         valid_lft forever preferred_lft forever
> [root@f20 ~]#  ip link set dev eth1 up
> [root@f20 ~]#  ip link set dev eth1 down
> [root@f20 ~]# ip addr show dev eth1
> 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
>      link/ether 02:04:11:22:33:01 brd ff:ff:ff:ff:ff:ff
>      inet6 2000:11:1:1::1/64 scope global
>         valid_lft forever preferred_lft forever
>      inet6 fe80::4:11ff:fe22:3301/64 scope link
>         valid_lft forever preferred_lft forever
Can you show an output of 'ip -6 route list table local' and 'ip -6 route' ?
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