>
> my preference is to dropp support for multi-destination mode from
> gif(4), as the multi-destination behavior is violating network layering
> (rt_gateway is in inner header, and gif(4) multi-destination mode
> uses it to determinte outer header).
There's certainly a bunch of NBMA network media out there. The problem is
abusing the routing table next hop as a way to specify the remote
tunnel endpoint. This should be an attribute of the gif interface,
configured outside of the routing infrastructure. Or, perhaps treated
like ARP for ethernet; it's just an accident that the "MAC" address for
a multi-point NBMA tunnel is an IPv4/IPv6 address.
louie
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