Sreeram Vankadari writes:
> > > now 2000::0/128 becomes the anycast address assigned to that
> interface.
> > > Suppose if there are multiple routers attached to that ethernet
> interface,
> > > and a packet comes with a destination address of 2000::/128 which
> > > router will respond to that packet.  (2000::/128 is an automatic
> anycast
> > > address assigned to all the ipv6 routers attached to that
ethernet)
> >
> > Technically "any" one of them would be legal, but the answer that
makes
> the most sense is "the first one that the packet reaches" (i.e. the
one
> closest to the source).
> 
> That is correct.  But how does the receiving router know that it is
the
> closest
> router to the source.

It doesn't.  The first router that sees the packet will respond.
The others won't see it.

-Dave
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