From: David Ahern <dsahern@gmail.com>
To: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: why are IPv6 addresses removed on link down
Date: Mon, 12 Jan 2015 22:06:44 -0700 [thread overview]
Message-ID: <54B4A7E4.7030301@gmail.com> (raw)
We noticed that IPv6 addresses are removed on a link down. e.g.,
ip link set dev eth1
Looking at the code it appears to be this code path in addrconf.c:
case NETDEV_DOWN:
case NETDEV_UNREGISTER:
/*
* Remove all addresses from this interface.
*/
addrconf_ifdown(dev, event != NETDEV_DOWN);
break;
IPv4 addresses are NOT removed on a link down. Is there a particular
reason IPv6 addresses are?
Thanks,
David
next reply other threads:[~2015-01-13 5:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-13 5:06 David Ahern [this message]
2015-01-13 7:10 ` why are IPv6 addresses removed on link down Stephen Hemminger
2015-01-13 10:35 ` Hannes Frederic Sowa
2015-01-13 11:58 ` YOSHIFUJI Hideaki
2015-01-13 12:15 ` YOSHIFUJI Hideaki
2015-01-13 12:36 ` Hannes Frederic Sowa
2015-01-13 14:53 ` David Ahern
2015-01-13 15:00 ` Hannes Frederic Sowa
2015-01-13 17:05 ` Nicolas Dichtel
2015-01-13 15:00 ` Sowmini Varadhan
2015-01-13 15:09 ` Hannes Frederic Sowa
2015-01-13 15:13 ` Sowmini Varadhan
2015-01-13 17:25 ` David Miller
2015-01-13 17:34 ` Hannes Frederic Sowa
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