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

What happens when you do a /32 static out the ethernet interface and then
use a network statement in BGP to inject the prefix?

On Wed, Mar 30, 2011 at 6:59 AM, Mathew <mathewfer_at_gmail.com> wrote:

> 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:
> >>> > >>
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> >>> > >>
> >>> > >>
> >>> > >>
> >>> > >>
> >>> > >>
> >>> > >>
> >>> > >>
> >>> > >
> >>> > >
> >>> >
> >>> >
> >>> >
> >>> > --
> >>> > Thanks
> >>> >
> >>> > Mathew
> >>> >
> >>> >
> >>> > Blogs and organic groups at
> >>> http://www.ccie.net
> >>> >
> >>> >
> >>> _______________________________________________________________________
> >>> >
> >>> Subscription information may be found at:
> >>> >
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> >>>
> >>>
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> >>> http://www.ccie.net
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> >>>
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> >>>
> >>> _______________________________________________________________________
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> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >> --
> >> *Narbik Kocharians
> >> *CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> >> www.MicronicsTraining.com <http://www.micronicstraining.com/>
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> >> _______________________________________________________________________
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> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> > --
> > Bobola Oke
> >
>
>
>
> --
> Thanks
>
> Mathew
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
CCIEx2 (R&S|Sec) #19963
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