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Frage zu IPv6 Address Mapping

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palme|kex`

God

Frage zu IPv6 Address Mapping

Wednesday, May 5th 2010, 5:23pm

Ich hab die Aufgabe herrauszufinden, warum das U/L-Bit (Universal/Local) der Mac-Adresse gekippt wird.

Hier sieht man wie man die Mac-Adresse zu ner IPv6 Adresse Mapt... Das man das Bit kippt ist dort auch beschrieben.

Was bringt mir das Kippen des Bits für einen Vorteil ?

hurra

God

Wednesday, May 5th 2010, 6:40pm

rfc3513, seite 8 und 9:

Quoted

The motivation for inverting the "u" bit when forming an interface
identifier is to make it easy for system administrators to hand
configure non-global identifiers when hardware tokens are not
available. This is expected to be case for serial links, tunnel end-
points, etc. The alternative would have been for these to be of the
form 0200:0:0:1, 0200:0:0:2, etc., instead of the much simpler 1, 2,
etc.

The use of the universal/local bit in the Modified EUI-64 format
identifier is to allow development of future technology that can take
advantage of interface identifiers with global scope.

palme|kex`

God

Wednesday, May 5th 2010, 7:12pm

Ok vielen Dank... doch so trivial... hast nen paar AquaDrops bekommen

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