On Wed, 13 Jul 2011, Jeroen Massar wrote:
To take this little thing called SixXS as an example, we allocate a /64
per tunnel, but only use <tunnel>::1 (PoP) and <tunnel>::2 (user).
We actually only configure ::1 on the tunnel and route ::2 to the
tunnel, thus effectively two /128's. Thus for everything else there will
be directly an ICMP unreachable. Simple as that.
A tunnel is not a broadcast medium, it's a point to point device. You
already statically tell it what the other end address is, right? Thus,
this is not a problem on this type of tunnel.
--
Mikael Abrahamsson email: [email protected]
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