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Outbound interface as a selector?
Consider the case of IPv6 link-local multicast. Say I have two multicast SAs
for dstaddr == ff02::2 (all-routers mcast). Let's say further that one SA is
for one link, and the other SA is for the other link. Unless I hardcode SPIs
into the user API (which is a BAD idea), I need to distinguish between the
two SAs. The only way I can think of is to use the outgoing interface as a
selector for outbound d-grams (and for that matter, inbound d-grams too).
Off the top of your heads, do you see anything really broken about the idea
of outbound interface as a selector?
Dan
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