RE: BGP- Conditional attribute

I m just trying to use the below config which you gave me , its didn't work
.. Same thing I can not see any 7.7.7.7 route on the AS200 router .. any idea
why ?

> Date: Sun, 6 Mar 2011 18:51:59 -0600
> Subject: Re: BGP- Conditional attribute
> From: nilsi2002_at_gmail.com
> To: i_sameer_at_hotmail.com
> CC: ccielab_at_groupstudy.com
>
> Hi,
>
> I'm not sure if I understand the scenario exactly.
>
> But here is a conditional scenario where 7.7.7.7 will be in the AS300
> bgp table but won't be advertised to AS200 if there is no default
> route. The conditional syntax determines whether a network is
> announced or withdrawn from the neighbor in question.
>
> -Rich
>
> >>>>>>>>>>no default route<<<<<<<<<<<<<<<<<
> Router R1
>
>
>
> router bgp 200
> no synchronization
> bgp log-neighbor-changes
> neighbor 9.9.12.2 remote-as 300
> default-information originate
> no redistribute static
> no auto-summary
> !
> ip forward-protocol nd
> ip route 0.0.0.0 0.0.0.0 Null0
>
> R1#sh ip bgp
> BGP table version is 2, local router ID is 1.1.1.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
> r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 8.8.8.8/32 9.9.12.2 0 0 300 i
> R1#
>
>
> Router R2
>
>
>
> router bgp 300
> no synchronization
> bgp log-neighbor-changes
> network 7.7.7.7 mask 255.255.255.255
> network 8.8.8.8 mask 255.255.255.255
> neighbor 9.9.12.1 remote-as 200
> neighbor 9.9.12.1 advertise-map PC exist-map DEFAULT
> no auto-summary
> !
>
> !
> ip prefix-list DEFAULT seq 5 permit 0.0.0.0/0
> !
> ip prefix-list PC seq 5 permit 7.7.7.7/32
>
> !
> !
> !
> !
> route-map PC permit 10
> match ip address prefix-list PC
> !
> route-map DEFAULT permit 10
> match ip address prefix-list DEFAULT
> !
>
> R2#sh ip bgp
> BGP table version is 7, local router ID is 8.8.8.8
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
> r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 7.7.7.7/32 0.0.0.0 0 32768 i
> *> 8.8.8.8/32 0.0.0.0 0 32768 i
> R2#
>
>
>
>
> >>>Now if default is available from AS200<<<<
>
>
>
> R1#sh ip bgp
> BGP table version is 4, local router ID is 1.1.1.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
> r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 0.0.0.0 0.0.0.0 0 32768 ?
> *> 7.7.7.7/32 9.9.12.2 0 0 300 i
> *> 8.8.8.8/32 9.9.12.2 0 0 300 i
> R1#
>
> '
> R2#sh ip bgp
> BGP table version is 9, local router ID is 8.8.8.8
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
> r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 0.0.0.0 9.9.12.1 0 0 200 ?
> *> 7.7.7.7/32 0.0.0.0 0 32768 i
> *> 8.8.8.8/32 0.0.0.0 0 32768 i
> R2#
>
>
>
>
> On Sun, Mar 6, 2011 at 6:51 AM, sameer inam <i_sameer_at_hotmail.com> wrote:
> > Dear expert,
> > I m trying to implement the conditional attribute Via EBGP . I put the
> > condition on router which has AS300 and other side is AS200 , its like
that
> > there is one PC connected in to AS300 network which has IP of 7.7.7.7 .
> >
> > condition is if AS200 router has default route then 7.7.7.7 network can
show
> > into BGP routing table of that router otherwise NO . after I put the
condition
> > on AS300 router I cannot see 7.7.7.7 route on AS200 router BGP routing
table
> > but issue is when I m trying to define the default route on AS200 router
its
> > show as static on normal routing table not in BGP routing table .
> > AS200 R2 > AS300 R3 >PC 7.7.7.7
> > can any one help me on that .
> > kind regards,
> > Sameer
> >
> >
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> >
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Received on Mon Mar 07 2011 - 18:37:27 ART