31 May
2015
31 May
'15
12:22 p.m.
On 27/05/2015 20:35, Brian Rak wrote:
You don't need full promisc mode, just the (poorly documented) allmulticast option (ip link set dev $macvtap allmulticast on)
...And poorly supported on some real hardware (notably Wi-Fi adapters), where the hash filter on each NIC's MAC is not guaranteed to support "ALLMULTI". It's a prerequisite for software multicast forwarding, and, it might be argued, a good litmus test for IPv6 readiness.