IPv6 EUI-64 local/global bit

From: Bit Gossip (bit.gossip@chello.nl)
Date: Tue Dec 23 2008 - 19:32:01 ARST

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Experts,
I don't understand why both cisco routers and also my linux box set the
local bit both in the link local address but also in the global address.
The global address is derived from NIC OUI where it is 0 (=global) by
definition; so does it become local in the interface ID?

Thanks,
Bit.

r1#show ipv6 interface brief f0/0
FastEthernet0/0 [up/up]
FE80::204:DDFF:FE11:620
2001:1111:1111:A:204:DDFF:FE11:620

wlan0 Link encap:Ethernet HWaddr 00:1C:BF:85:3C:EA
        inet addr:192.168.255.231 Bcast:192.168.255.255
Mask:255.255.255.224
        inet6 addr: 2001:1111:1111:a:21c:bfff:fe85:3cea/64 Scope:Global
        inet6 addr: fe80::21c:bfff:fe85:3cea/64 Scope:Link

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