From: Eric Dobyns (eric_dobyns@yahoo.com)
Date: Sat Jul 07 2007 - 16:01:23 ART
I've seen this error on 3560s when assigning a link-local to a port-channel.
Debug ipv6 nd should help you see what's going on.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Narbik Kocharians
Sent: Saturday, July 07, 2007 2:10 AM
To: nisha rani
Cc: Cisco certification
Subject: Re: Duplicate link-local
No worries, did you change the link-local IPv6 address? or see the
configuration and the MAC addresses?
On 7/7/07, nisha rani <nisharani1@googlemail.com> wrote:
>
> No you misundstood me, In my previous email sent to group study I said i
> think it was IOS bug.
>
> On 07/07/07, Narbik Kocharians <narbikk@gmail.com> wrote:
> >
> > By the way why did you think that i was going to say it is an IOS bug?
> >
> > On 7/7/07, nisha rani <nisharani1@googlemail.com > wrote:
> > >
> > > Narbik,
> > >
> > > I am configuring Ipv6 between ethernet interface of two routers. there
> > > are two router with Ipv6 address.
> > >
> > > Now I don't think it's an IOS bug as i used different IOS and same
> > > result.
> > >
> > > Thanks
> > > Nisha
> > >
> > >
> > > On 07/07/07, Narbik Kocharians <narbikk@gmail.com > wrote:
> > > >
> > > > How many other routers do you have on that segment?
> > > >
> > > > On 7/6/07, nisha rani <nisharani1@googlemail.com > wrote:
> > > > >
> > > > > Brajesh,
> > > > > Thanks for reply, As soon as i enable ipv6 on the interface it's
> > > > > erroring
> > > > > with duplicate address, very strange.
> > > > >
> > > > > 3620_R3(config-if)#ipv6 ena
> > > > > 3620_R3(config-if)#ipv6
> > > > > *Mar 5 17:52:45.535: %IPV6-4-DUPLICATE: Duplicate address
> > > > > FE80::204:4DFF:FE06:AAF1 on Et0
> > > > > 3620_R3(config-if)#do sh run int e1/0
> > > > > Building configuration...
> > > > > Current configuration : 90 bytes
> > > > > !
> > > > > interface Ethernet1/0
> > > > > ip address 198.11.11.3 255.255.255.0
> > > > > ipv6 enable
> > > > > end
> > > > >
> > > > > Regards,
> > > > > Nisha
> > > > >
> > > > > On 07/07/07, brajesh.thakur@wipro.com <brajesh.thakur@wipro.com>
> > > > > wrote:
> > > > > >
> > > > > >
> > > > > > Nisha, Try configuring the following set of command and see if
> > > > > it works
> > > > > > fine:
> > > > > >
> > > > > > Rack1R1(config-if)#ipv6 enable
> > > > > > Rack1R1(config-if)#ipv6 add fe80::/64 eui-64
> > > > > >
> > > > > >
> > > > > > You can check complete link-local address by following command:
> > > > > >
> > > > > > Show ipv6 interface <int type/number>
> > > > > >
> > > > > > Also try pinging address FE80::1 after running these commands.
> > > > > >
> > > > > > Warm Regards,
> > > > > > Brajesh Thakur
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > > > > Behalf Of
> > > > > > nisha rani
> > > > > > Sent: Saturday, July 07, 2007 11:47 AM
> > > > > > To: Cisco certification
> > > > > > Subject: Duplicate link-local
> > > > > >
> > > > > > Rack1R1(config-if)#ipv6 add fe80::1 link
> > > > > > Rack1R1(config-if)#ipv6 add fe80::1 link-local
> > > > > > Rack1R1(config-if)#
> > > > > > *Mar 3 16:00: 59.340: %IPV6-4-DUPLICATE: Duplicate address
> > > > > FE80::1 on
> > > > > > FastEthernet1/0
> > > > > > Rack1R1(config-if)#
> > > > > > Rack1R1(config-if)#
> > > > > > Rack1R1(config-if)#do sh ipv6 inte
> > > > > > FastEthernet1/0 is up, line protocol is up
> > > > > > IPv6 is stalled, link-local address is FE80::1 [DUPLICATE]
> > > > > > Global unicast address(es):
> > > > > > 2001:1:1:1::1, subnet is 2001:1:1:1::/64 [TENTATIVE]
> > > > > > Joined group address(es):
> > > > > > FF02::1
> > > > > > FF02::2
> > > > > > FF02::1:FF00:1
> > > > > >
> > > > > > Regards,
> > > > > >
> > > > > >
> > > > >
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