From: nisha rani (nisharani1@googlemail.com)
Date: Sat Jul 07 2007 - 13:47:37 ART
I didn't have ipv6 enabled on any other router. I only reloaded those two
routers and reconfigured ipv6. I am also curious why it happened.
On 07/07/07, Yasmin Lara <ylara@sunsetlearning.com> wrote:
>
> That means there is another node with that same link local address on the
> link and DAD is detecting the duplication. A PC? another node running IPv6?
> You can try debug ipv6 nd and then shut/no shut and see what the debug
> shows.
>
> Yasmin.
>
> ________________________________
>
> From: nobody@groupstudy.com on behalf of nisha rani
> Sent: Sat 7/7/2007 3:17 AM
> To: Narbik Kocharians
> Cc: Cisco certification
> Subject: Re: Duplicate link-local
>
>
>
> Yeah I have changed link local address on both router but still same
> issue... Plz help
> Here is the output.
>
> ciscog_r5(config-if)#do sh run int fa0/0/0
> Building configuration...
>
> > Current configuration : 116 bytes
> > !
> > interface FastEthernet0/0/0
> > ipv6 address FE80::5 link-local
> > end
> >
> > ciscog_r5(config-if)#do sh ipv6 inter
> > FastEthernet0/0/0 is up, line protocol is up
> > IPv6 is stalled, link-local address is FE80::5 [DUPLICATE]
> > No global unicast address is configured
> > Joined group address(es):
> > FF02::1
> > FF02::2
> > FF02::1:FF00:5
> > MTU is 1500 bytes
> > ICMP error messages limited to one every 100 milliseconds
> > ICMP redirects are enabled
> > ND DAD is enabled, number of DAD attempts: 1
> > ND reachable time is 30000 milliseconds
> > ND advertised reachable time is 0 milliseconds
> > ND advertised retransmit interval is 0 milliseconds
> > ND router advertisements are sent every 200 seconds
> > ND router advertisements live for 1800 seconds
> > Hosts use stateless autoconfig for addresses.
> >
>
> !
> interface FastEthernet2/0/0
> full-duplex
> ipv6 address 2003:1:1:11::1/64
> ipv6 address FE80::1 link-local
> ipv6 enable
> end
>
>
> ciscob_r4(config-if)#do sh ipv6 int
> FastEthernet2/0/0 is up, line protocol is up
> IPv6 is enabled, link-local address is FE80::1
> Global unicast address(es):
> 2003:1:1:11::1, subnet is 2003:1:1:11::/64
> Joined group address(es):
> FF02::1
> FF02::2
> FF02::1:FF00:1
> MTU is 1500 bytes
> ICMP error messages limited to one every 100 milliseconds
> ICMP redirects are enabled
> ND DAD is enabled, number of DAD attempts: 1
> ND reachable time is 30000 milliseconds
> ND advertised reachable time is 0 milliseconds
> ND advertised retransmit interval is 0 milliseconds
> ND router advertisements are sent every 200 seconds
> ND router advertisements live for 1800 seconds
> Hosts use stateless autoconfig for addresses.
> ciscob_r4(config-if)#
>
> Thanks
>
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