Hi,
I'm trying to get a handle on the Modified EUI-64 (IPv6 stateless
autoconfig)
Switch#sh int fa0/3
FastEthernet0/3 is down, line protocol is down (notconnect)
Hardware is Fast Ethernet, address is 001b.2ba2.9584 (bia
001b.2ba2.9584)
Following the rules:
1.Inverse the 7th most bit: 00 = 00000010 = 021B.2BA2.9584
2.Add FF FE to the middle: 021B.2BFF.FEA2.9584
3.Add FE80 to the beginning: FF80:021B:2BFF:FEA2:9584
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int fa0/3
Switch(config-if)#no switch
Switch(config-if)#ipv6 add auto
Switch(config-if)#do sh ipv6 int br
Vlan1 [up/down]
unassigned
FastEthernet0/1 [up/up]
FE80::21B:2BFF:FEA2:95C2
FastEthernet0/2 [down/down]
FE80::1
FastEthernet0/3 [down/down]
FE80::21B:2BFF:FEA2:95C3
FastEthernet0/4 [down/down]
unassigned
FastEthernet0/5 [down/down]
unassigned
FastEthernet0/6 [down/down]
unassigned
FastEthernet0/7 [down/down]
unassigned
FastEthernet0/8 [down/down]
unassigned
GigabitEthernet0/1 [down/down]
unassigned
Switch(config-if)#do sh int fa0/3
FastEthernet0/3 is down, line protocol is down (notconnect)
Hardware is Fast Ethernet, address is 001b.2ba2.95c3 (bia
001b.2ba2.95c3)
I don't have time to read all the documentation right now on why it's
doing this to the end of the address. Does anyone know off the top of
their head why the address would change from 84 to c3 (at the end of the
address)?
Thanks in advance
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