Re: IPv6 address autoconfig default.

This brings me to another question:

How much do you read into the restrictions in the lab? To give 2 examples:

    * If you are not allowed to use static routes. Is "ipv6 address
      autoconfig default" still allowed due to the creation of the
      static route?
    * Prevent switch from becoming root without changing priority. Using
      uplinkfast will change the priority, is this allowed?

There are several other examples I can think of. Do you adhere strictly
to the restrictions or ignore them if they are compromised indirectly. :-)

On 2011/05/18 08:09 AM, Oliver Potter wrote:
> Hi, Garry
>
> Thanks a lot.
> got it with your debug making default route using the interface
>
> BR,
> Oliver
>
> On Tue, May 17, 2011 at 10:56 PM, garry baker<baker.garry_at_gmail.com> wrote:
>
>> sounds about right, ipv6 nd doing its thing:
>>
>> debug ipv6 nd
>> debug ipv6 routing
>>
>> *Mar 1 00:04:06.727: ICMPv6-ND: Selected new default router
>> FE80::C00C:1CFF:FEF5:0 on FastEthernet0/0
>> *Mar 1 00:04:06.727: IPv6RT0: static, Route add ::/0 [new]
>> *Mar 1 00:04:06.727: IPv6RT0: static, Add ::/0 to table
>> *Mar 1 00:04:06.727: IPv6RT0: static, Adding next-hop
>> FE80::C00C:1CFF:FEF5:0 over FastEthernet0/0 for ::/0, [1/0]
>>
>>
>>
>> --
>> Garry L. Baker
>>
>> "With sufficient thrust, pigs fly just fine..." - RFC 1925
>>
>>
>>
>> On Wed, May 18, 2011 at 8:11 AM, Oliver Potter<oliverengpotter_at_gmail.com>wrote:
>>
>>> Hi,
>>>
>>> I was wondering that when configuring "ipv6 address autoconfig", how does
>>> its option 'default' work?
>>>
>>> According to cisco doc,,,
>>>
>>> *default*
>>>
>>> (Optional) If a default router is selected on this interface, the
>>> *default*keyword causes a default route to be installed using that
>>> default router.The
>>> *default* keyword can be specified only on one interface.
>>>
>>> I can guess that If this default option is configured on one of ipv6
>>> interface, we don't need to configure static default route.
>>> Is it right? please advise me what I am missing.
>>>
>>>
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Received on Wed May 18 2011 - 11:11:57 ART