From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH net-next v2 04/10] net: provide a sysctl raw_l3mdev_accept
 for raw socket lookup with VRFs
Date: Tue, 2 Oct 2018 13:39:23 -0600
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References: <20181001084320.32453-1-mmanning@vyatta.att-mail.com>
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To: Mike Manning <mmanning@vyatta.att-mail.com>, netdev@vger.kernel.org
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On 10/1/18 2:43 AM, Mike Manning wrote:
> Add a sysctl raw_l3mdev_accept to control raw socket lookup in a manner
> similar to use of tcp_l3mdev_accept for stream and of udp_l3mdev_accept
> for datagram sockets. Have this default to off as this is what users
> expect, given that there is no explicit mechanism to set unmodified
> VRF-unaware application into a default VRF.

It needs to default to on to avoid breaking existing users. With the
raw_l3mdev_accept sysctl set to 0 both 'ping -I <vrf> <addr>' and 'ping
-I <dev> <addr>' fail when they succeed today.