Hi,
Thanks for the feedback.
ipre...@freebsd.org wrote:
Well, now, something really interesting happened. I changed default IGMP
version via sysctl
# sysctl net.inet.igmp.default_version=2
but, then I tested it with mtest and generated packets were still IGMPv3
Membership reports, but first two of them had proper mcast ethernet
address. They generated sent by mtest.
Sorry, forgot to mention -- this sysctl won't take effect immediately.
It needs to be set before the interface's driver is loaded and IPv4 is
attached to the interface.
Do you have any unusual ARP table entries or routing setup? That would
be where to look next.
There haven't been any other reports of this issue as far as I know. The
IGMP code does not fill out the Ethernet address field -- it leaves it
up to ip_output() to do that.
Do you see this with other multicast traffic, or just IGMP reports?
thanks,
BMS
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