Re: Inconsistent address and mask

For what I can tell you have an interface 12.12.12.1/8 and another device with 12.12.12.2/8 and you want to add a static route to

23.23.0.0/16 via 12.12.12.2 which is fine but you typed

ip route 23.23.23.0 255.255.0.0 12.12.12.2

However as stated before 23.23.23.0/16 in not a network but a host address on the network you want to add a route for, hence the message IOS gives you.

Regards

Graham Hopkins

On 24 Jun 2013, at 12:37, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:

> What do you mean by "IP range is 1.0.0.0 126.255.255.255" ?
>
> And how do you expect that anybody can say "it is ok" if nobody knows
> what is that you want to achieve ? :)
>
> -Carlos
>
> Nadeem Anjum @ 24/06/2013 08:32 -0300 dixit:
>> Dear All,
>>
>> Interface IP is 12.12.12.1/8. 12.0.0.0 255.0.0.0 is network address. IP
>> range is 1.0.0.0 126.255.255.255
>>
>> And I am adding route of 23.23.0.0/16. This network is within the range
>> of interface IP range. Is it ok?
>>
>> Thanks,
>> Nadeem Anjum
>>
>> ------------------------------------------------------------------------
>> *From:* Carlos G Mendioroz <tron_at_huapi.ba.ar>
>> *To:* Nadeem Anjum <nadeemkool_at_yahoo.com>
>> *Cc:* Eduardo Vazquez <evazquez_at_gmail.com>; ccie groupstudy
>> <ccielab_at_groupstudy.com>
>> *Sent:* Monday, June 24, 2013 3:10 PM
>> *Subject:* Re: Inconsistent address and mask
>>
>> Nadeem,
>> the network mask defines the boundary between network and host regions
>> of an IP address.
>> A network address, by definition, has the host part set to zeroes.
>>
>> If it does not, as in your case, IOS barfs :)
>>
>> I.e. in:
>> ip route 23.23.23.0 255.255.0.0 12.12.12.2
>> ^^^^^^^^^^^^^^^^^^^^^^
>> NNNNN HHHH
>>
>> 255.255.0.0 means 23.23 is network and 23.0 is host part.
>>
>> -Carlos
>>
>> Nadeem Anjum @ 24/06/2013 03:15 -0300 dixit:
>>> Dear All,
>>>
>>> Concept is still not clear. Can you please explain in more details.
>>>
>>>
>>>
>>> Thanks,
>>> Nadeem Anjum
>>>
>>>
>>>
>>>> ________________________________
>>>> From: Eduardo
>>> Vazquez <evazquez_at_gmail.com <mailto:evazquez_at_gmail.com>>
>>>> To: Nadeem Anjum <nadeemkool_at_yahoo.com
>> <mailto:nadeemkool_at_yahoo.com>>
>>>> Cc:
>>> ccie groupstudy <ccielab_at_groupstudy.com
>> <mailto:ccielab_at_groupstudy.com>>
>>>> Sent: Saturday, June 22, 2013 5:14
>>> PM
>>>> Subject: Re: Inconsistent address and mask
>>>>
>>>>
>>>> Your mask and network
>>> number don't match. It has to be either:
>>>>
>>>> Ip route 23.23.0.0 255.255.0.0
>>> 12.12.12.2
>>>>
>>>> Or
>>>>
>>>> Ip route 23.23.23.0 255.255.255.0 12.12.12.2
>>>>
>>>> On
>>> Saturday, June 22, 2013, Nadeem Anjum wrote:
>>>>
>>>>> Dear All,
>>>>>
>>>>> I am facing
>>> the following error. My routers output is as follow.
>>>>> Why I am facing this
>>> error.
>>>>>
>>>>> Cisco-R1#sh ip int brief
>>>>> Interface
>>>>> IP-Address OK?
>>> Method Status Protocol
>>>>> FastEthernet0/0
>>> 12.12.12.1 YES manual up up
>>>>> FastEthernet0/1
>>> unassigned YES unset administratively down
>>>>> down
>>>>> Loopback0
>>> 1.1.1.1 YES manual up
>>>>> up
>>>>> Cisco-R1#
>>> Cisco-R1#sh runn int fa0/0
>>>>> Building
>>>>> configuration...
>>>>>
>>>>> Current
>>> configuration : 91 bytes
>>>>> !
>>>>> interface FastEthernet0/0
>>>>> ip address
>>> 12.12.12.1 255.0.0.0
>>>>> duplex auto
>>>>> speed auto
>>>>> end
>>>>>
>>>>> Cisco-R1#
>>> Cisco-R1(config)#ip route 23.23.23.0 255.255.0.0 12.12.12.2
>>>>> %Inconsistent
>>>>> address and mask
>>>>> Cisco-R1(config)#
>>>>>
>>>>>
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>>> http://www.ccie.net <http://www.ccie.net/>
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>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>>
>> LW7 EQI Argentina
>>
>>
>> Blogs and organic groups at http://www.ccie.net <http://www.ccie.net/>
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

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Received on Mon Jun 24 2013 - 13:24:23 ART