From: Li Wei <lw@cn.fujitsu.com>
To: netdev <netdev@vger.kernel.org>
Subject: ipv6: addrconf_add_mroute() problem with loopback interface.
Date: Mon, 05 Dec 2011 10:57:45 +0800 [thread overview]
Message-ID: <4EDC3329.1040801@cn.fujitsu.com> (raw)
Hi All,
addrconf_add_mroute() create "default" multicast route for the interface,
but with loopback interface, there would be some problem:
If we set ipv6 address for the "lo" interface *before* other interfaces, the
function addrconf_add_mroute() will create a "default" multicast route with
error set to ENETUNREACH for "lo" interface.
Later, when we send multicast packet, route subsystem will return this *error*
route, so no multicast packets can go out.
Does somebody can give me some advice that if it's necessary to add default
multicast route for loopback interface?
reply other threads:[~2011-12-05 2:57 UTC|newest]
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