Re: bgp

Then use BGP conditional route advertisement to advertise 1.1.1.0/24 subnet
only if your fake subnet is in the BGP table???
but cpommand says

advertise-map and non-exist-map >>>*!--- Advertises the routes matched in
the route-map ADVERTISE
!--- only if the routes matched in route-map NON-EXIST
!--- do not exist in the BGP table*

On Thu, Nov 26, 2009 at 2:25 PM, Uchil Perera <uchil.groupstudy_at_gmail.com>wrote:

> Hi,
>
> You can create a route pointing to a fake subnet and track it with IPSLA,
> for IPSLA use an interface on the FW. Then use BGP conditional route
> advertisement to advertise 1.1.1.0/24 subnet only if your fake subnet is
> in the BGP table. Please not for conditional BGP to work, subnets have to be
> in the BGP table, hence you need to advertise the fake subnet in BGP and
> filter it out the SP interface.
>
> Please refer below link
>
>
> http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a0080094309.shtml
>
> Rgds
>
> Uchil Perera
> CCIE# 18536
> On Thu, Nov 26, 2009 at 9:00 AM, jack daniels <jckdaniels12_at_gmail.com>wrote:
>
>> but even if I poll FW and track it ,
>> how to apply this IP SLA POLL to BGP router-map or network statement.
>>
>> On Thu, Nov 26, 2009 at 1:23 PM, ajaz nawaz <ajaz.nawaz_at_gmail.com> wrote:
>>
>> > IP SLA or other methods as suggested.
>> >
>> > Ajaz Nawaz
>> > CCIE#15721
>> >
>> > 2009/11/26 jack daniels <jckdaniels12_at_gmail.com>
>> >
>> > > Hi,
>> > >
>> > > Subnets are same as in advertise map and conditional map , plzz check
>> the
>> > > diag
>> > >
>> > > On Thu, Nov 26, 2009 at 1:15 PM, Shaughn Smith <
>> shaughn.s_at_cvnnet.co.za
>> > > >wrote:
>> > >
>> > > > What about using an advertise-map in BGP ?
>> > > >
>> > > > -----Original Message-----
>> > > > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
>> Behalf
>> > Of
>> > > > jack daniels
>> > > > Sent: Thursday, November 26, 2009 9:37 AM
>> > > > To: Cisco certification
>> > > > Subject: bgp
>> > > >
>> > > > Hi All,
>> > > >
>> > > > I have a customer scenario where
>> > > >
>> > > >
>> > > > ISP 2.2.2.1----2.2.2.2 router1.1.1.1/24 -------Switch -----------
>> > > > 1.1.1.2/24FW------LAN
>> > > >
>> > > >
>> > > > ISP and router are running BGP. Now I want to advertise the
>> 1.1.1.0/24
>> > > > when
>> > > > FW is up if FW is down I dont want to advertise this subnet. I have
>> > > > redundancy so will use redundant media and firewall . my querriery
>> is
>> > > > how
>> > > > not to advertise in BGP 1.1.1.0/24when my FW is down.
>> > > >
>> > > >
>> > > > Blogs and organic groups at http://www.ccie.net
>> > > >
>> > > >
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Received on Thu Nov 26 2009 - 14:36:42 ART