Gert,

My response marked with [Sriram] below.

[Gert] Having implementations that could tack arbitrary "RPF lists" to an
interface would be very nice, but this is more like "auto-generate ACLs
based on prefix info" than "RPF" which stands for "reverse path filter"
(not sure about the "filter" bit, though)

[Sriram] Current Feasible Path uRPF makes use of announced prefixes
to creates RPF tables of permitted source addresses on specific interfaces,
and our enhanced FP uRPF also does the same, but with some more
intelligence built in.

Sriram

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