Re: How to advertise ethernet IP as /32 in BGP

Hi Jules,

Thank you again for your reply & testing it.

How did you get the loopback configured with the same IP as Ethernet
with /32 mask.
For me, I can not get the loopback. Did you have the Ethernet also
with the same address but different mask - like 24. See below.
I think if I can get the loopback interface configured, we can
advertise it straight in BGP. Is'n it?

What am I missing here?

Please check your configuration again for me, how you tested it & let
us see your full config with the IOS ver tested.

Thank you again for your reply.

R2#sho runn int fast 0/0
Building configuration...

Current configuration : 530 bytes
!
interface FastEthernet0/0
 ip address 10.100.40.2 255.255.255.0
end

R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int loopback 44
R2(config-if)#ip address 10.100.40.2 255.255.255.255
% 10.100.40.2 overlaps with FastEthernet0/0
R2(config-if)#

Regards,

Mathew

On Thu, Mar 31, 2011 at 11:47 AM, jules NYA BAWEU <nyabaweu_at_gmail.com> wrote:
> Can you try getting around with the PPPOE client config?
>
> loo100 -- > 10.100.40.2 255.255.255.255
> dialer 1 -- > unnumbered loo100
> then link fa0/0 to the dialer pool
>
> You should then use the /32 network in statement in the BGP section.
>
> I just tried it and able to advertise the /32. Sorry if I missed some
> details in you requirement
>
> On Wed, Mar 30, 2011 at 5:33 PM, Mathew <mathewfer_at_gmail.com> wrote:
>>
>> Hi Aaron,
>>
>> Thank you for the reply.
>>
>> No, I did not try because I am trying to find a way to get /32. Reason
>> is that this project involve many routers & we are limited with IPs.
>>
>> Any more ideas?
>>
>>
>> Mathew
>>
>>
>> On Thu, Mar 31, 2011 at 10:52 AM, Aaron <aaron1_at_gvtc.com> wrote:
>> > You tried a /31?
>> >
>> > Aaron
>> >
>> > On Mar 30, 2011, at 6:21 PM, Mathew <mathewfer_at_gmail.com> wrote:
>> >
>> >> Hi Hubert/All,
>> >>
>> >> I tried the sub-interface options you suggested but it did not work,
>> >> see below. I tried before to enter /32 IP under main Ethernet
>> >> interface & it did not take /32 IP & it seems same with a
>> >> sub-interface too.
>> >>
>> >> Any other ideas are welcome as I have ran out of options but I believe
>> >> there should be a way to do this too.
>> >>
>> >> R2(config)#int FastEthernet0/0.1
>> >>
>> >> R2(config-subif)#encapsulation dot1Q 1
>> >> R2(config-subif)#ip address 2.2.2.2 255.255.255.255
>> >> Bad mask /32 for address 2.2.2.2
>> >> R2(config-subif)#ip address 2.2.2.2 255.255.255.252
>> >> R2(config-subif)#do sho runn int FastEthernet0/0.1
>> >> Building configuration...
>> >>
>> >> Current configuration : 101 bytes
>> >> !
>> >> interface FastEthernet0/0.1
>> >> encapsulation dot1Q 1 native
>> >> ip address 2.2.2.2 255.255.255.252
>> >> end
>> >>
>> >> R2(config-subif)#
>> >>
>> >> Regards
>> >>
>> >> Mathew
>> >>
>> >>
>> >>
>> >> On Thu, Mar 31, 2011 at 9:33 AM, Hubert Hinsley
>> >> <hubert.hinsley_at_gmail.com> wrote:
>> >>> Hello, would it be possible to achieve the solution via subinterfaces
>> >>> on the
>> >>> router ethernet interface? One with a /32 address and one with a /24?
>> >>> Or,
>> >>> possibly via primary and secondary ip addresses on the same interface?
>> >>> Apologies if I have misunderstood the question.Regards, Hubert.
>> >>>
>> >>> On 30 Mar 2011 20:53, "Mathew" <mathewfer_at_gmail.com> wrote:
>> >>>
>> >>> Hi Stephen,
>> >>>
>> >>> Thank you for the reply.
>> >>> Yes, I need to be advertise in BGP. So unfortunately, PPP idea can not
>> >>> be used here.
>> >>>
>> >>> Mathew
>> >>>
>> >>> On Wed, Mar 30, 2011 at 6:32 AM, Narbik Kocharians <narbikk_at_gmail.com>
>> >>> wrote:
>> >>>> Mathew,
>> >>>>
>> >>>> Does it...
>> >>>
>> >>>> Sr. Technical Instructor
>> >>>> Ask about our FREE Lab Voucher with our Boot Camps
>> >>>> YES! We take Cisco...
>> >>>
>> >>> --
>> >>>
>> >>> Thanks
>> >>>
>> >>> Mathew
>> >>>
>> >>>
>> >>> Blogs and organic groups at http://www.ccie.net
>> >>>
>> >>> __________________________________...
>> >>
>> >>
>> >>
>> >> --
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>> >>
>> >> Mathew
>> >>
>> >>
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>>
>> --
>> Thanks
>>
>> Mathew
>>
>>
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-- 
Thanks
Mathew
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