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

Hi All,

First, thank you for all the replies.

Unfortunately, I still could not get that to work.

1. The NAT option did not work as I have the below entry.
ip nat inside source list TRAFFIC-ACL interface FastEthernet0/0 overload

2. With BGP route injection, it did not work as it is not possible to
match source of IP - in this case locally generated from Ethernet. I
think it is not possible to identify the source of the router when the
/24 mask on Ethernet interface.

Any more ideas to get this done are welcome & thanks in advance.

Mathew

On Wed, Mar 30, 2011 at 8:16 AM, Bobola Oke <okebobola_at_gmail.com> wrote:
> Wow,
>
> I was thinking about this all day.....
>
> PPPoE is the way to go here. Thanks Narbik
>
> Will lab this up later.
>
> Regards
>
> On 3/29/11, Narbik Kocharians <narbikk_at_gmail.com> wrote:
>> Mathew,
>>
>> Does it have to be advertised in BGP?
>>
>> Because you can run PPP and the other router will have a /32 route for your
>> Ethernet's IP address.
>>
>> On Tue, Mar 29, 2011 at 10:51 AM, stephen okoye <tosco12_at_yahoo.co.uk> wrote:
>>
>>> hi,
>>>
>>> have you tried advertising into an IGP, say ospf as /32, then
>>> redistribute the
>>> IGP into bgp?
>>>
>>>
>>>
>>> ________________________________
>>> From:
>>> garry baker <baker.garry_at_gmail.com>
>>> To: Mathew <mathewfer_at_gmail.com>
>>> Cc:
>>> Nadeem Rafi <nrafia_at_gmail.com>; Cisco certification <
>>> ccielab_at_groupstudy.com>
>>> Sent: Tue, 29 March, 2011 8:49:57
>>> Subject: Re: How to advertise ethernet IP as
>>> /32 in BGP
>>>
>>> not sure the complete scenario but how about using 'bgp
>>> inject-map'
>>>
>>> http://www.cisco.com/en/US/docs/ios/iproute_bgp/configuration/guide/irg_basic
>>> _net_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1055919
>>>
>>> --
>>> Garry
>>> L. Baker
>>>
>>> "With sufficient thrust, pigs fly just fine..." - RFC 1925
>>>
>>>
>>>
>>> On
>>> Tue, Mar 29, 2011 at 10:30 AM, Mathew <mathewfer_at_gmail.com> wrote:
>>>
>>> > Hi
>>> Nadeem,
>>> >
>>> > Thanks for the quick reply. It is not possible. Also I want to
>>> keep
>>> > tha mask as /24 on Ethernet & find a way to advertise it also as /32
>>> >
>>> for NAT/PAT purpose.
>>> >
>>> > Any more ideas???
>>> >
>>> > R2#int FastEthernet0/0
>>> >
>>> R2(config-if)#
>>> > R2(config-if)#ip address 1.1.1.1 255.255.255.255
>>> > Bad mask
>>> /32 for address 1.1.1.1
>>> > R2(config-if)#
>>> >
>>> > Mathew
>>> >
>>> > On Tue, Mar 29, 2011
>>> at 6:19 PM, Nadeem Rafi <nrafia_at_gmail.com> wrote:
>>> > > simple way is to change
>>> ip address on ethernet from x.x.x.x 255.255.255.0
>>> > to
>>> > > 255.255.255.255 and
>>> then advertise this address in BGP.
>>> > > HTH
>>> > >
>>> > > On Tue, Mar 29, 2011 at
>>> 10:15 AM, Mathew <mathewfer_at_gmail.com> wrote:
>>> > >>
>>> > >> Hi All,
>>> > >>
>>> > >> Is
>>> there a way to advertise Ethernet IP as /32 route in BGP?
>>> > >>
>>> > >> I have a
>>> requirement to advertise Ethernet IP as /32 (host route) in
>>> > >> BGP so other
>>> routers will see it as a host route.
>>> > >>
>>> > >> In fact, I tried many way
>>> (static to null, loopback - not possible
>>> > >> etc) without a success & I
>>> believe there is a simple way to do that.
>>> > >>
>>> > >> Any suggestions/workaround
>>> is appreciated.
>>> > >>
>>> > >> 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
>>> > >> !
>>> >
>>> >> .
>>> > >> .
>>> > >>
>>> > >> --
>>> > >> Thanks
>>> > >>
>>> > >> Mathew
>>> > >>
>>> > >>
>>> > >> Blogs and
>>> organic groups at http://www.ccie.net
>>> > >>
>>> > >>
>>> _______________________________________________________________________
>>> > >>
>>> Subscription information may be found at:
>>> > >>
>>> http://www.groupstudy.com/list/CCIELab.html
>>> > >>
>>> > >>
>>> > >>
>>> > >>
>>> > >>
>>> > >>
>>> > >>
>>> > >
>>> > >
>>> >
>>> >
>>> >
>>> > --
>>> > Thanks
>>> >
>>> > Mathew
>>> >
>>> >
>>> > Blogs and organic groups at
>>> http://www.ccie.net
>>> >
>>> >
>>> _______________________________________________________________________
>>> >
>>> Subscription information may be found at:
>>> >
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>> Blogs and organic groups at
>>> http://www.ccie.net
>>> _______________________________________________________________________
>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>> --
>> *Narbik Kocharians
>> *CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>> www.MicronicsTraining.com <http://www.micronicstraining.com/>
>> Sr. Technical Instructor
>> *Ask about our FREE Lab Voucher with our Boot Camps*
>> YES! We take Cisco Learning Credits!
>> Training & Remote Racks available
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>>
>>
>>
>>
>>
>>
>
>
> --
> Bobola Oke
>

-- 
Thanks
Mathew
Blogs and organic groups at http://www.ccie.net