Re: [RFC] net: ipv4: drop unicast encapsulated in L2 multicast

Johannes Berg wrote:

As long as IPv6 doesn't mandate it in the RFCs I'm not really sure we
should just drop it, even if we think it won't cause any problems?

CLUSTERIP seems like a special configuration, but I'm not sure it can be
detected and automatically allowed?

Please do not "drop" L2 multicast/broadcast for L3 unicast and
vice versa, unless it is explicitly specified by RFC.

Upper-layer needs to cope eith situation of seeing packets with
"incorrect" L2 header anyway (e.g., in promiscous mode).
I do not see much advantage to drop them here.

-- 
Hideaki Yoshifuji [off-list ref]
Technical Division, MIRACLE LINUX CORPORATION